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Internet outage

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domestic access to the Internet?" where answers range from "Extremely Often" to "Never or almost Never." Freedom House's Freedom on the Net report also uses expert analysis to assess whether internet shutdowns have occurred, but instead of surveying multiple experts, Freedom House identifies and partners with a single expert to conduct an analysis. Freedom House asks the question "Does the government intentionally disrupt the internet or cellphone networks in response to political or social events, whether temporary or long term, localized or nationwide?" Generally expert analyses are more prone to false positives and fewer false negatives (i.e. identifying shutdowns that other sources cannot confirm), than remote sensing methods with manual oversight.
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reports from local activists, official government statements, and statements from ISPs. The OpenNet Initiative has volunteers install software on their computers to check websites from access points around the world, then confirms those results with manual observations. These methods are prone to more false negatives and fewer false positives (i.e. all shutdowns that these sources identify can be confirmed by other sources) than expert analyses.
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Several organizations use expert analysis to identify internet shutdowns. Some, such as the Digital Society Project (DSP), send out surveys to experts around the world, and then aggregate the results into a single score. For internet shutdowns, the DSP asks "How often does the government shut down
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by a government for a small area or many large areas of its country. Such a shut down is typically used as a means of information control in a brief period of upheaval or transition. In autocracies, internet shutdowns have appeared especially in the context of contested elections and post-electoral
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was shut down by the government. The Burmese government shut down the internet connection in nine townships of the northern Arakan State and one single township in the Southern Chin State, which was proposed by Burmese Military officers. The shutdown is ongoing, and has become the world's longest
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Shortly after the death of pop singer Michael Jackson, thousands of online media posts and users rapidly attempted results of Michael Jackson on how he died. This resulted in Google blocking Michael Jackson-related searches (after assumption that a DDoS attack was at hand), Twitter and Knowledge
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In order to address these concerns, some organizations have implemented various methods of oversight. Organizations such as Access Now and the OpenNet Initiative use such methods. Access Now uses technological methods to detect shutdowns, but then confirms those shutdowns using news reports,
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Other organizations use various remote sensing techniques to identify shutdowns. Some organizations, such as the Open Observatory of Network Interference, the Internet Censorship Lab and the Monash IP-Observatory use automated remote sensing methods to detect internet shutdowns. The Open
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violence. It can impede the ability of protesters or insurgent forces to mobilize and organize. It also serves to prevent real-time information access for foreign people or entities. Reactions from leaders, journalists, observers and others in foreign countries can be delayed.
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A comparatively new method for detecting internet shutdowns is remote sensing with automated oversight. These methods have been praised as more ethical and efficient as they do not endanger in-country volunteers. However these methods have yet to produce regular datasets.
1456:, Indonesian authorities imposed an internet blackout on both provinces on 21 August 2019. The blackout continued until the authority partially lifted the blackout on 4 September in several regions, with complete lifting of the restriction only occurring in 9 September. 2836:
Faris, R. & Villeneuve, N. (2008). Measuring Global Internet Filtering in R. Deibert, J. Palfrey, R. Rohozinski, & J. Zittrain, (Eds.), Access Denied: The Practice and Policy of Global Internet Filtering, Cambridge: MIT Press.
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Coppedge, Michael; Gerring, John; Knutsen, Carl Henrik; Lindberg, Staffan I.; Teorell, Jan; Marquardt, Kyle L.; Medzihorsky, Juraj; Pemstein, Daniel; Pernes, Josefine; von Römer, Johannes; Stepanova, Natalia (2019-04-01). "V-Dem Methodology V9".
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Raman, R. S., Stoll, A., Dalek, J., Ramesh, R. Scott, W., & Ensafi, R. (2020). Measuring the Deployment of Network Censorship Filters at Global Scale. Network and Distributed System Security (NDSS) Symposium
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Modern society, especially in developed countries, depends heavily on the Internet not just for communication. There have been some measures taken and possibilities exist for managing and countering a large-scale Internet outage.
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Observatory of Network Interference uses software installed on computers of volunteers around the world to detect shutdowns. However these methods are prone to false positives, false negatives, and various technical challenges.
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Border Gateway Protocol (BGP) is used to route traffic on the internet. BGP hijacking is a form of cyber-attack where an attacker alters the routing information in BGP, causing internet traffic to be directed to the wrong place.
1570:. For a short period of time, no Facebook employee could access the building to investigate the issue due to their "keycards not working.". At around 6:30 PM EST, Facebook reported that all their sites were up. Facebook CEO 201:
These attacks target the infrastructure of the internet, specifically the routing systems that direct traffic between different networks. By manipulating or disrupting these systems, attackers can cause widespread outages.
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VanderSloot, B., McDonald, A., Scott, W., Halderman, J.A., & Ensafi, R. (2018). Quack: Scalable Remote Measurement of Application-Layer Censorship. In Proceedings of the 27th USENIX Security
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Niaki, Arian Akhavan; Cho, Shinyoung; Weinberg, Zachary; Hoang, Nguyen Phong; Razaghpanah, Abbas; Christin, Nicolas; Gill, Phillipa (2019-07-09). "ICLab: A Global, Longitudinal Internet Censorship Measurement Platform".
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A botnet is a network of compromised computers that are controlled by an attacker. These computers can be used to launch DDoS attacks, spread malware, or perform other malicious actions that can cause internet outages.
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Hoang, P. N., Doreen, S., Polychronakis, M., (2019). Measuring I2P Censorship at a Global Scale. In Proceedings of the 9th USENIX Workshop on Free and Open Communications on the Internet.
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failure resulted in corrupt .com and .net zones, which were subsequently released to the DNS root servers. As the root servers were reloaded, they began to return failures for all domains in the .com and .net
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can lead to internet outages by either directly destroying local ICT infrastructure or indirectly damaging the local electricity grid. The Monash IP Observatory and KASPR Datahaus have tracked the impact of
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The movement was being mobilized utilizing social media networks, and to establish control over the situation government applied a complete internet shutdown to suppress protests throughout the country.
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On October 21st, North Korean internet infrastructure dropped off the internet, including public facing websites and email servers. All servers which were subject to monitoring were found to be offline.
795:(AS29386) of Syrian Telecommunication Establishment (STE) was cut off completely at 10:26 UTC. Five prefixes were reported to have remained up, this is why Dyn reports an outage of 92% of the country. 3003: 1683:
On July 8th, 2022, Rogers reported the largest outage in Canadian history. The outage affected both cable Internet and cellular networks, as well as critical infrastructure that used them, including
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Inclement weather such as heavy snow, thunderstorm, and heavy rain can cause outages by damaging the infrastructure or making it difficult for maintenance crews to access and repair the network.
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On July 19, 2024, various IT systems around the world experienced an outage that has led to ongoing disruptions across different industries, including media firms, banks, and airlines.
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with it having a "hub-like" core structure that makes it robust to random losses of nodes but also fragile to targeted attacks on key components − the highly connected nodes or "hubs".
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Three separate incidents of major damage to submarine optical communication cables around the world occurred in 2008. The first incident caused damage involving up to five high-speed
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Petersen, Hauke; Baccelli, Emmanuel; Wählisch, Matthias; Schmidt, Thomas C.; Schiller, Jochen (27 October 2014). "The Role of the Internet of Things in Network Resilience".
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may cause blackouts or slowdowns to large areas. Countries with a less developed Internet infrastructure are more vulnerable due to small numbers of high-capacity links.
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on its distribution routers, which caused all possible routes to the internet to pass through the routers, exceeding the capacity of the routers on its core network.
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debit payments, hospitals, banks, and 9-1-1 access. The outage occurred during an update to the company's core IP network that resulted in the deletion of a
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could cause large-scale global months-long Internet outages. Researchers have described potential mitigation measures and exceptions – such as user-powered
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Doyle, John C.; Alderson, David L.; Li, Lun; Low, Steven; Roughan, Matthew; Shalunov, Stanislav; Tanaka, Reiko; Willinger, Walter (11 October 2005).
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Mechkova, V., Daniel P., Brigitte S.,&Steven W. (2020). Digital Society Project Dataset v2.Varieties of Democracy (V-Dem) Project
2295: 1176:, the popular internet transit provider accidentally rerouted IP packages after it wrongly accepted a network misconfiguration from a small 735:
was shut down by the government, whereby approximately 93% of networks were without access in 2011 in an attempt to stop mobilization for
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These attacks flood a website or network with traffic from multiple sources, overwhelming the server and making it unavailable to users.
2119: 4025: 1566:, the latter possibly caused by Facebook users reporting the outage. The outage came less than a day after a whistleblower had been on 1192:, and others, ended up going through DQE and Allegheny, which buckled under the strain, causing traffic to disappear into a black hole. 1736:
globally cutting off its people’s access to the internet, whilst maintaining domestic national internet National Information Network
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was shut down by the government, whereby approximately 96% of networks were without access in an attempt to stop mobilization for
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Accidents caused by human error, such as a construction crew cutting through a fiber-optic cable, can cause internet outages.
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On January 17, around 20 percent of the people in Cameroon had their internet blocked due to recent anti-government protests.
3291: 3737: 3707: 3210: 355: 1343: 3827:"BGP super-blunder: How Verizon today sparked a 'cascading catastrophic failure' that knackered Cloudflare, Amazon, etc" 4180: 1988: 1306: 975: 3381: 2441: 1661: 510: 3985: 3826: 3802:"How Verizon and a BGP Optimizer caused a major internet outage affecting Amazon, Facebook, CloudFlare among others" 689:
A woman digging for scrap metal damaged land cables and thereby severed most connectivity for the nation of Armenia.
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Internet service providers (ISPs) rely on electricity to power their networks, so power failures can cause outages.
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Floods, hurricanes, earthquakes, and other natural disasters can damage internet infrastructure, causing outages.
2374: 605: 592: 470: 4181:"Bangladesh has erupted over jobs reserved for the children of 'freedom fighters.' Here's what you need to know" 2880: 2495: 497:
from 23 January to 4 February 2008, causing internet disruptions and slowdowns for users in the Middle East and
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Malicious software can infect and damage computer systems and networks, leading to internet outages.
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The temporary disconnection of civilian internet access by military forces is an important aspect of
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Jyothi, Sangeetha Abdu (9 August 2021). "Solar superstorms: Planning for an internet apocalypse".
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and produced by Arcadyan, were crashed due to failed TR-064 exploitation attempts by a variant of
501:. In late February there was another outage, this time affecting a fiber optic connection between 3261: 2303: 2005: 165: 153: 2192: 1626: 797:
Responsibility for the outage has somewhat speculatively been blamed on various organizations.
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Scheduled maintenance or unexpected repairs on the internet infrastructure can cause outages.
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Internet outages can be prevented by a more resilient, decentralized Internet architecture.
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line. Both the incidents had caused the internet disruptions and slowdowns for users in the
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The failure of equipment such as servers, routers, and switches can cause internet outages.
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was shut down on account of anti-government protests against sudden energy price rises.
1016: 1007: 983: 955: 925: 842: 306: 134: 113: 4155: 4122: 3647: 3640:"DDoS attack that disrupted internet was largest of its kind in history, experts say" 3299: 2811: 2772: 2633: 2533: 2451: 2437: 2281: 2269: 2230: 2212: 2127: 2090: 1993: 1387: 1326: 1184:, systems around the planet were automatically updated, and connections destined for 732: 490: 457: 437: 129: 2104: 791:
On 29 November 2012 the Syrian internet was cut off from the rest of the world. The
4090:"Iran's sweeping internet blackouts are a serious cause for concern | CNN Business" 2823: 2803: 2594: 2429: 2261: 2220: 2202: 2082: 1449: 1238: 846: 833: 24: 3920:"Half a dozen North Korean domains offline after apparent server outage | NK News" 2375:"Computer scientist warns global internet is not prepared for a large solar storm" 2265: 3729: 3699: 3202: 2086: 1688: 1571: 1003: 897: 859: 850: 302: 142: 109: 47: 2249: 3759: 2791: 2177:
Proceedings of the National Academy of Sciences of the United States of America
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On June 24, 2019, many parts of the Internet faced an unprecedented outage as
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Mechkova, Valeriya; Pemstein, Daniel; Seim, Brigitte; Wilson, Steven (2021).
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Decentralization § Centralization and redecentralization of the Internet
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attack in February 2020, showing an error message in place of website content
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Pearce, Paul; Ensafi, Roya; Li, Frank; Feamster, Nick; Paxson, Vern (2018).
2433: 2207: 1112:(AS131279) of Star JV was cut off completely, due to alleged US cyber attack 4245: 3000:"GO submarine cable fault part of wider disruption between Italy and Egypt" 2598: 2296:"The Monash IP Observatory - Hurricane Florence's impact on local internet" 2234: 1999: 1962: 1591:
BGP Withdrawal of IP Address (Facebook), Server overwhelming (other sites)
1555: 1181: 999: 161: 138: 4206:"Takeaways from Egypt: Kill the kill switch and decentralize the Internet" 2350:"Real-time Mapping of Hurricane Laura's Impact on Internet Infrastructure" 4148:"Record number of countries enforced internet shutdowns in 2022 – report" 3876:"India's Internet shutdown in Kashmir is the longest ever in a democracy" 1968: 1542:
On October 4, 2021, at around 11:45 AM EST, the online social media site
1498: 1330: 1099: 1010:, the attack is, according to experts, the largest DDoS attack on record. 967: 963: 641: 609: 522: 518: 494: 55: 28: 1909: 1855: 2250:"Election-related internet-shutdowns in autocracies and hybrid regimes" 1827: 1798: 1648: 1616: 1567: 1554:. Around 4:00 PM EST, people reported other sites were not working via 1189: 971: 637: 613: 294: 91:
A government internet blackout is the deliberate shut down of civilian
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http://opennet.net/sites/opennet.net/files/Deibert_02_Ch01_005-028.pdf
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The cyberattack took place on October 21, 2016, and involved multiple
2588: 1547: 1475: 1435: 1322: 991: 633: 502: 117: 3551:"Many sites including Twitter, Shopify and Spotify suffering outage" 3292:"Snowden: NSA accidentally caused Syria's internet blackout in 2012" 2590: 2519: 1982: – Infrastructure without which the Internet would not function 289:
A variety of organizations measure internet shutdowns including the
4241: 4010: 3970: 3950: 3852:"Kashmir Internet Shutdown Continues, Despite Supreme Court Ruling" 2773:"Toward Automated Worldwide Monitoring of Network-level Censorship" 2725: 2475: 1551: 1543: 1309:
which caused huge controversy and mass protest in various parts of
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applications and new protocols – and the robustness of the current
108:. This tactic is common today, and is often used in concert with a 69: 3897:"Presiden & Menkominfo Diputus Bersalah Blokir Internet Papua" 3356:"German leaders angry at cyberattack, hint at Russian involvement" 2069: 4026:"Facebook says sorry for mass outage and reveals why it happened" 3966:"Facebook blames 'faulty configuration change' for major outages" 3464:"Unprecedented cyber attack takes Liberia's entire internet down" 2979:"Severed Cables in Mediterranean Disrupt Communication (Update4)" 2792:"Toward Continual Measurement of Global Network-Level Censorship" 2017: 1684: 1563: 1409: 1377: 1318: 1173: 1164: 901: 888: 828: 679: 625: 506: 3610:"What We Know About Friday's Massive East Coast Internet Outage" 23:
Electronic information stand without an internet connection, at
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crashed, and AOL Instant Messenger collapsing for 40 minutes.
4250: 4064:"Internet disrupted in Kazakhstan amid energy price protests" 2701: 2118:
Ellis-Petersen, Hannah; correspondent, a local (2020-01-05).
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cut off on 25 December 2011. The first cut off occurred to
514: 186: 3774:"North Korea's Internet Comes Back on After About 9 Hours" 3760:"Sony hack: North Korea back online after internet outage" 3580:"The Possible Vendetta Behind the East Coast Web Slowdown" 3520:"Massive cyber-attack grinds Liberia's internet to a halt" 3437:"German internet outage was failed botnet attempt: report" 3124:"du alerts customers over disruption in Internet services" 2680: 2558:"Shutdown Tracker Optimization Project (STOP) Methodology" 1949: – Single shut off mechanism for all Internet traffic 222: 3990: 2749:
Yadav, Tarun Kumar; Chakravarty, Sambuddho (2018-04-18).
2658:"#KeepItOn: Fighting internet shutdowns around the world" 2428:. Association for Computing Machinery. pp. 692–704. 1145: 645: 621: 16:
Loss of internet functionality over a small or large area
3150:"Georgian woman cuts off web access to whole of Armenia" 2400:"A Bad Solar Storm Could Cause an 'Internet Apocalypse'" 2028:
Pages displaying short descriptions of redirect targets
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Pages displaying short descriptions of redirect targets
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Etherington, Darrell; Conger, Kate (21 October 2016).
3203:"Egypt severs internet connection amid growing unrest" 2789: 2589:
Fletcher, Terry; Hayes-Birchler, Andria (2020-07-30).
2008: – Halt to communication abilities or utilization 1546:
went down, as well as Facebook subsidiaries including
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Proceedings of the 2021 ACM SIGCOMM 2021 Conference
2170: 3548: 2173:"The "robust yet fragile" nature of the Internet" 2041: – Attack on Internet routing infrastructure 4257: 3986:"After a bad day, Facebook suffers major outage" 3126:. gulftoday.ae. 27 December 2011. Archived from 2748: 2254:Journal of Elections, Public Opinion and Parties 579:Multiple subjects on MJ's death results online. 3788:"North Korea Gets New Internet Link via Russia" 2248:Eichhorn, Kristin; Linhart, Eric (2022-06-23). 2247: 2919:"Cable damage hits one million Internet Users" 1965: – Use of digital attacks against a state 123: 2977:Fried, Malcolm; Klemming, Lars (2008-12-19). 2911: 2555: 1448:that occurred in the Indonesian provinces of 1006:malware. With an estimated throughput of 1.2 954:(DDoS attacks) targeting systems operated by 380:Internet censorship § Internet shutdowns 185:Screenshot of the Knowledge website during a 3330:"New Mirai Worm Knocks 900K Germans Offline" 3327: 3038: 2035: – Series of protests from 2011 to 2012 1891:Temporary alternative forms of communication 904:'s internet infrastructure in November 2016. 177:Distributed Denial of Service (DDoS) attacks 3064: 1574:lost around $ 7B dollars after the outage. 4238:The Internet could crash. We need a Plan B 2634:"The draconian rise of internet shutdowns" 46:is the complete or partial failure of the 4087: 3917: 3894: 3116: 3098:"Cable cuts could slow Emirates Internet" 3090: 2496:"Freedom on the Net Research Methodology" 2474: 2224: 2206: 2196: 2068: 2002: – Loss of electric power to an area 301:, the Digital Society Project (using the 116:. It could also be used in advance of an 4178: 3700:"Why has Cameroon blocked the internet?" 3461: 3289: 3168: 2770: 841:At the end of November 2016 0.9 million 291:Open Observatory of Network Interference 180: 18: 3100:. finance.yahoo.com. 26 December 2011. 2556:Anthonio, Felicia; Cheng, Sage (2021). 2061:Internet of Things. IoT Infrastructures 223:Border Gateway Protocol (BGP) Hijacking 4258: 4145: 3072:"Cable cut slows down Internet in UAE" 3048:. khaleejtimes.com. 27 December 2011. 2878: 2423: 1953:Internet censorship in the Arab Spring 1337:decided to shut down internet access. 80: 4216:from the original on 20 February 2017 3740:from the original on 21 February 2017 3710:from the original on 21 February 2017 3675: 3637: 3601: 3530:from the original on 21 November 2016 3500:from the original on 22 November 2016 3474:from the original on 21 November 2016 3443:from the original on 20 February 2017 3417:from the original on 20 February 2017 3336:from the original on 20 December 2016 3074:. emirates247.com. 26 December 2011. 3052:from the original on 27 December 2011 3006:from the original on 25 December 2008 2766: 2764: 2584: 2582: 2580: 2578: 2576: 2574: 2572: 2570: 2551: 2549: 2547: 2490: 2488: 2486: 2463: 2461: 1786:2024 Bangladesh Quota Reform Movement 1051:South-West and North-West of Cameroon 952:distributed denial-of-service attacks 305:methodology and infrastructure), the 3455: 3213:from the original on 23 January 2012 3078:from the original on 22 January 2013 2929:from the original on 9 February 2008 1904: 1850: 966:—when, for instance, entered into a 342: 276: 260: 236: 99: 4088:Thorbecke, Catherine (2022-09-24). 3362:from the original on 5 January 2017 3262:"How Syria Turned Off the Internet" 3156:from the original on 25 August 2013 2881:"Human Error Cripples the Internet" 2755:IIIT-Delhi Institutional Repository 2718: 2626: 900:has also been used in an attack on 620:and the second cut off occurred to 13: 4112: 3918:Weisensee, Nils (23 August 2021). 3607: 3542: 3462:McGoogan, Cara (4 November 2016). 2761: 2567: 2544: 2524: 2483: 2458: 2342: 2317: 2288: 1989:Critical infrastructure protection 1605:2022 Kazakhstan internet shutdown 1355:Various State governments of India 1180:in Pennsylvania, US. According to 576:Search Engines & Social Media 312: 196: 68:A line of research finds that the 14: 4292: 4231: 4203: 3328:Krebs, Brian (30 November 2016). 3174: 3104:from the original on 5 March 2016 2520:http://digitalsocietyproject.org/ 1002:—that had been infected with the 475:Middle East and Mediterranean Sea 321: 244: 3290:Ackerman, Spencer (2014-08-13). 3027:. Telecompaper. 19 December 2008 3002:. timesofmalta.com. 2008-12-19. 1980:Critical Internet infrastructure 1908: 1854: 1820: 1791: 1719: 1667: 1641: 1609: 1491: 1468: 1428: 1402: 1370: 1284: 1258: 1221: 1152: 1124: 1092: 1069: 1039: 982:consisting of a large number of 931: 881: 821: 775: 751: 715: 672: 553: 399:Number of affected users (rough) 346: 4197: 4172: 4139: 4106: 4081: 4056: 4038: 4018: 3998: 3978: 3958: 3938: 3911: 3888: 3868: 3844: 3833:from the original on 2019-06-26 3819: 3808:from the original on 2019-06-26 3794: 3780: 3766: 3752: 3722: 3692: 3669: 3658:from the original on 2016-10-27 3631: 3620:from the original on 2016-10-22 3590:from the original on 2016-10-22 3572: 3561:from the original on 2016-10-21 3512: 3486: 3429: 3403: 3392:from the original on 2016-12-22 3374: 3348: 3321: 3310:from the original on 2018-09-13 3283: 3272:from the original on 2019-01-08 3254: 3243:from the original on 2019-01-07 3225: 3195: 3142: 3017: 2992: 2970: 2948:"Internet capacity down to 10%" 2940: 2897: 2872: 2862: 2853: 2843: 2830: 2783: 2742: 2694: 2684:Digital Society Survey Codebook 2674: 2650: 2512: 2417: 1366:2019 Burmese internet shutdown 1307:Citizenship Amendment Act, 2019 1054:20% of the country's population 606:submarine communications cables 593:2011 submarine cable disruption 487:submarine communications cables 471:2008 submarine cable disruption 171: 148: 63:submarine communications cables 4179:Zulfaqar, Samra (2024-07-21). 3895:Briantika, Adi (3 June 2020). 3152:. The Guardian. 6 April 2011. 2392: 2367: 2241: 2164: 2111: 2052: 2033:Protests against SOPA and PIPA 1897:Emergency communication system 1755:July 2024 global cyber outages 284: 268: 252: 1: 3439:. Reuters. 29 November 2016. 2266:10.1080/17457289.2022.2090950 2046: 1846: 1838: 1764:~8.5 million Windows devices 976:distributed denial-of-service 3829:. The Register. 2019-06-24. 3496:. PCWorld. 3 November 2016. 2954:. 2008-02-29. Archived from 2879:Wayner, Peter (1997-07-17). 2087:10.1007/978-3-319-19743-2_39 2026: – Type of cyber-attack 771:2012 Syrian internet outage 450:Automation and Human Failure 231: 7: 4146:Harter, Fred (2023-02-28). 3638:Woolf, Nicky (2016-10-26). 3177:"Egypt Leaves the Internet" 2905:"DNS Brownout this morning" 2796:IEEE Security & Privacy 2726:"The Monash IP Observatory" 1939: 128:Extreme weather events and 124:Weather or natural disaster 10: 4297: 3924:NK News - North Korea News 2777:Carnegie Mellon University 2771:Weinberg, Zachary (2018). 2690:. Digital Society Project. 2020: – Malicious software 1894: 1714:2021–2023 Iranian protests 1279:Internet shutdown in India 984:Internet-connected devices 597:South Asia and Middle East 462:All .com and .net domains 377: 213: 205: 84: 3899:(in Indonesian). Tirto.id 3179:. Renesys. Archived from 1216:Iranian internet shutdown 1198:Internet transit provider 624:which took place between 2808:10.1109/MSP.2018.1331018 1536:LAN Internet Connection 1243:anti-government protests 737:anti-government protests 547:Death of Michael Jackson 75: 3680:. MIT Technology Review 3332:. krebsonsecurity.com. 2434:10.1145/3452296.3472916 2208:10.1073/pnas.0501426102 2006:Communications blackout 1627:Internet in Kazakhstan 1444:To curb the escalating 338: 166:Internet infrastructure 2614:Cite journal requires 2599:10.5281/ZENODO.3967397 1917:This section is empty. 1816:Government Censorship 1625:On 4 January 2022 the 1352:government censorship 1115:9 hours and 31 minutes 970:—to its corresponding 190: 50:. It can occur due to 31: 4266:Internet architecture 1971: – Malware agent 1958:Just-in-time blocking 1637:government censorship 1464:government censorship 1398:government censorship 1254:government censorship 1065:government censorship 747:government censorship 184: 22: 3736:. 10 February 2017. 3413:. 28 November 2016. 1947:Internet kill switch 1579:2021 Facebook outage 1060:270 days or 8 months 996:residential gateways 360:adding missing items 4276:Internet censorship 3884:. 16 December 2019. 3881:The Washington Post 3706:. 8 February 2017. 3526:. 3 November 2016. 3388:. 7 December 2016. 3266:The Cloudflare Blog 3209:. 28 January 2011. 2189:2005PNAS..10214497D 2183:(41): 14497–14502. 2079:2014arXiv1406.6614P 1577:For more info, see 1510:At least 14 minutes 1423:2019 Papua protests 1303:Government of India 1008:terabits per second 114:conventional forces 106:information warfare 87:Internet censorship 81:Government blackout 4251:Redecentralize.org 4113:Newman, Lily Hay. 3926:. Korea Risk Group 3676:Condliffe, Jamie. 3608:Newman, Lily Hay. 3358:. Deutsche Welle. 3183:on 29 January 2011 2156:has generic name ( 2012:Network congestion 1866:. You can help by 1391:internet shutdown. 1108:On October 1, The 1017:Domain Name System 956:Domain Name System 926:DDoS attack on Dyn 509:. On 19 December, 414:Entity responsible 408:Internet component 358:; you can help by 307:OpenNet Initiative 191: 135:Hurricane Florence 32: 4052:. 4 October 2021. 4034:. 5 October 2021. 4014:. 4 October 2021. 3994:. 4 October 2021. 3974:. 5 October 2021. 3954:. 4 October 2021. 3386:www.incapsula.com 3130:on 8 January 2012 2706:explorer.ooni.org 2096:978-3-319-19742-5 1994:Internet backbone 1937: 1936: 1884: 1883: 1836: 1835: 1388:Internet in Burma 1327:Arunachal Pradesh 1110:autonomous system 793:autonomous system 733:Internet in Egypt 604:Two incidents of 491:Mediterranean Sea 458:Network Solutions 393:Country or region 376: 375: 277:Weather condition 261:Equipment failure 237:Natural disasters 154:Solar superstorms 130:natural disasters 100:Military blackout 48:internet services 44:Internet shutdown 40:Internet blackout 4288: 4281:Internet outages 4226: 4225: 4223: 4221: 4201: 4195: 4194: 4192: 4191: 4176: 4170: 4169: 4167: 4166: 4143: 4137: 4136: 4134: 4133: 4110: 4104: 4103: 4101: 4100: 4085: 4079: 4078: 4076: 4075: 4060: 4054: 4053: 4042: 4036: 4035: 4022: 4016: 4015: 4002: 3996: 3995: 3982: 3976: 3975: 3962: 3956: 3955: 3942: 3936: 3935: 3933: 3931: 3915: 3909: 3908: 3906: 3904: 3892: 3886: 3885: 3872: 3866: 3865: 3863: 3862: 3848: 3842: 3841: 3839: 3838: 3823: 3817: 3816: 3814: 3813: 3798: 3792: 3791: 3784: 3778: 3777: 3770: 3764: 3763: 3756: 3750: 3749: 3747: 3745: 3726: 3720: 3719: 3717: 3715: 3696: 3690: 3689: 3687: 3685: 3673: 3667: 3666: 3664: 3663: 3635: 3629: 3628: 3626: 3625: 3605: 3599: 3598: 3596: 3595: 3576: 3570: 3569: 3567: 3566: 3546: 3540: 3539: 3537: 3535: 3516: 3510: 3509: 3507: 3505: 3490: 3484: 3483: 3481: 3479: 3459: 3453: 3452: 3450: 3448: 3433: 3427: 3426: 3424: 3422: 3407: 3401: 3400: 3398: 3397: 3378: 3372: 3371: 3369: 3367: 3352: 3346: 3345: 3343: 3341: 3325: 3319: 3318: 3316: 3315: 3287: 3281: 3280: 3278: 3277: 3258: 3252: 3251: 3249: 3248: 3229: 3223: 3222: 3220: 3218: 3199: 3193: 3192: 3190: 3188: 3172: 3166: 3165: 3163: 3161: 3146: 3140: 3139: 3137: 3135: 3120: 3114: 3113: 3111: 3109: 3094: 3088: 3087: 3085: 3083: 3068: 3062: 3061: 3059: 3057: 3042: 3036: 3035: 3033: 3032: 3021: 3015: 3014: 3012: 3011: 2996: 2990: 2989: 2987: 2986: 2974: 2968: 2967: 2965: 2963: 2952:The Jakarta Post 2944: 2938: 2937: 2935: 2934: 2915: 2909: 2908: 2901: 2895: 2894: 2892: 2891: 2876: 2870: 2866: 2860: 2857: 2851: 2847: 2841: 2834: 2828: 2827: 2787: 2781: 2780: 2768: 2759: 2758: 2746: 2740: 2739: 2737: 2736: 2722: 2716: 2715: 2713: 2712: 2698: 2692: 2691: 2689: 2678: 2672: 2671: 2669: 2668: 2654: 2648: 2647: 2645: 2644: 2630: 2624: 2623: 2617: 2612: 2610: 2602: 2586: 2565: 2564: 2562: 2553: 2542: 2541: 2528: 2522: 2516: 2510: 2509: 2507: 2506: 2492: 2481: 2480: 2478: 2465: 2456: 2455: 2421: 2415: 2414: 2412: 2410: 2396: 2390: 2389: 2387: 2385: 2371: 2365: 2364: 2362: 2361: 2356:. 29 August 2020 2346: 2340: 2339: 2337: 2336: 2321: 2315: 2314: 2312: 2311: 2302:. Archived from 2292: 2286: 2285: 2245: 2239: 2238: 2228: 2210: 2200: 2168: 2162: 2161: 2155: 2151: 2149: 2141: 2139: 2138: 2115: 2109: 2108: 2072: 2056: 2029: 1985: 1932: 1929: 1919:You can help by 1912: 1905: 1879: 1876: 1858: 1851: 1826: 1824: 1823: 1797: 1795: 1794: 1725: 1723: 1722: 1673: 1671: 1670: 1653:mobile internet 1647: 1645: 1644: 1615: 1613: 1612: 1497: 1495: 1494: 1474: 1472: 1471: 1434: 1432: 1431: 1408: 1406: 1405: 1386:On June 21, the 1376: 1374: 1373: 1290: 1288: 1287: 1264: 1262: 1261: 1239:Internet in Iran 1227: 1225: 1224: 1201:misconfiguration 1158: 1156: 1155: 1130: 1128: 1127: 1098: 1096: 1095: 1075: 1073: 1072: 1045: 1043: 1042: 937: 935: 934: 887: 885: 884: 860:Internet routers 847:Deutsche Telekom 834:Deutsche Telekom 827: 825: 824: 781: 779: 778: 757: 755: 754: 721: 719: 718: 678: 676: 675: 653:submarine cables 559: 557: 556: 530:submarine cables 405:Duration (rough) 384: 383: 371: 368: 350: 349: 343: 25:Schiphol Airport 4296: 4295: 4291: 4290: 4289: 4287: 4286: 4285: 4256: 4255: 4234: 4229: 4219: 4217: 4202: 4198: 4189: 4187: 4177: 4173: 4164: 4162: 4144: 4140: 4131: 4129: 4111: 4107: 4098: 4096: 4086: 4082: 4073: 4071: 4062: 4061: 4057: 4044: 4043: 4039: 4024: 4023: 4019: 4004: 4003: 3999: 3984: 3983: 3979: 3964: 3963: 3959: 3944: 3943: 3939: 3929: 3927: 3916: 3912: 3902: 3900: 3893: 3889: 3874: 3873: 3869: 3860: 3858: 3856:thediplomat.com 3850: 3849: 3845: 3836: 3834: 3825: 3824: 3820: 3811: 3809: 3800: 3799: 3795: 3786: 3785: 3781: 3772: 3771: 3767: 3758: 3757: 3753: 3743: 3741: 3728: 3727: 3723: 3713: 3711: 3698: 3697: 3693: 3683: 3681: 3674: 3670: 3661: 3659: 3636: 3632: 3623: 3621: 3606: 3602: 3593: 3591: 3578: 3577: 3573: 3564: 3562: 3547: 3543: 3533: 3531: 3518: 3517: 3513: 3503: 3501: 3492: 3491: 3487: 3477: 3475: 3460: 3456: 3446: 3444: 3435: 3434: 3430: 3420: 3418: 3409: 3408: 3404: 3395: 3393: 3380: 3379: 3375: 3365: 3363: 3354: 3353: 3349: 3339: 3337: 3326: 3322: 3313: 3311: 3288: 3284: 3275: 3273: 3260: 3259: 3255: 3246: 3244: 3237:b2b.renesys.com 3231: 3230: 3226: 3216: 3214: 3201: 3200: 3196: 3186: 3184: 3173: 3169: 3159: 3157: 3148: 3147: 3143: 3133: 3131: 3122: 3121: 3117: 3107: 3105: 3096: 3095: 3091: 3081: 3079: 3070: 3069: 3065: 3055: 3053: 3044: 3043: 3039: 3030: 3028: 3023: 3022: 3018: 3009: 3007: 2998: 2997: 2993: 2984: 2982: 2975: 2971: 2961: 2959: 2958:on 3 March 2008 2946: 2945: 2941: 2932: 2930: 2917: 2916: 2912: 2903: 2902: 2898: 2889: 2887: 2877: 2873: 2867: 2863: 2858: 2854: 2848: 2844: 2835: 2831: 2788: 2784: 2769: 2762: 2747: 2743: 2734: 2732: 2724: 2723: 2719: 2710: 2708: 2700: 2699: 2695: 2687: 2679: 2675: 2666: 2664: 2656: 2655: 2651: 2642: 2640: 2632: 2631: 2627: 2615: 2613: 2604: 2603: 2587: 2568: 2560: 2554: 2545: 2529: 2525: 2517: 2513: 2504: 2502: 2494: 2493: 2484: 2466: 2459: 2444: 2422: 2418: 2408: 2406: 2398: 2397: 2393: 2383: 2381: 2373: 2372: 2368: 2359: 2357: 2348: 2347: 2343: 2334: 2332: 2323: 2322: 2318: 2309: 2307: 2294: 2293: 2289: 2246: 2242: 2198:10.1.1.218.6287 2169: 2165: 2153: 2152: 2143: 2142: 2136: 2134: 2116: 2112: 2097: 2057: 2053: 2049: 2044: 2027: 1983: 1942: 1933: 1927: 1924: 1903: 1893: 1880: 1874: 1871: 1864:needs expansion 1849: 1841: 1821: 1819: 1792: 1790: 1720: 1718: 1668: 1666: 1642: 1640: 1610: 1608: 1597:Major websites 1588:LAN connection 1572:Mark Zuckerberg 1529:Facebook outage 1492: 1490: 1469: 1467: 1429: 1427: 1403: 1401: 1371: 1369: 1342:Over one year ( 1285: 1283: 1259: 1257: 1222: 1220: 1207:Major websites 1153: 1151: 1125: 1123: 1093: 1091: 1070: 1068: 1040: 1038: 1028:Major websites 958:(DNS) provider 932: 930: 882: 880: 822: 820: 776: 774: 752: 750: 716: 714: 673: 671: 554: 552: 438:Ingres database 382: 372: 366: 363: 347: 341: 324: 315: 313:Expert Analysis 303:V-Dem Institute 287: 279: 271: 263: 255: 247: 239: 234: 225: 216: 208: 199: 197:Routing attacks 179: 174: 151: 143:Hurricane Laura 126: 110:ground invasion 102: 93:internet access 89: 83: 78: 61:Disruptions of 36:Internet outage 17: 12: 11: 5: 4294: 4284: 4283: 4278: 4273: 4268: 4254: 4253: 4248: 4233: 4232:External links 4230: 4228: 4227: 4204:Hiner, Jason. 4196: 4171: 4138: 4105: 4080: 4055: 4037: 4017: 3997: 3977: 3957: 3937: 3910: 3887: 3867: 3843: 3818: 3793: 3779: 3765: 3751: 3721: 3691: 3668: 3630: 3600: 3571: 3541: 3511: 3485: 3454: 3428: 3402: 3373: 3347: 3320: 3282: 3268:. 2012-11-29. 3253: 3224: 3194: 3175:Cowie, James. 3167: 3141: 3115: 3089: 3063: 3037: 3016: 2991: 2969: 2939: 2925:. 2008-02-04. 2910: 2896: 2885:New York Times 2871: 2861: 2852: 2842: 2829: 2782: 2760: 2741: 2730:IP Observatory 2717: 2693: 2673: 2649: 2625: 2616:|journal= 2566: 2543: 2523: 2511: 2482: 2457: 2442: 2416: 2391: 2379:techxplore.com 2366: 2341: 2316: 2300:IP Observatory 2287: 2260:(4): 705–725. 2240: 2163: 2110: 2095: 2050: 2048: 2045: 2043: 2042: 2036: 2030: 2021: 2015: 2009: 2003: 1997: 1991: 1986: 1977: 1972: 1966: 1960: 1955: 1950: 1943: 1941: 1938: 1935: 1934: 1915: 1913: 1892: 1889: 1882: 1881: 1861: 1859: 1848: 1845: 1840: 1837: 1834: 1833: 1830: 1817: 1814: 1812: 1809: 1805: 1803: 1801: 1788: 1783: 1779: 1778: 1776: 1774: 1772: 1770: 1768: 1765: 1762: 1760: 1757: 1752: 1748: 1747: 1745: 1743: 1741: 1739: 1737: 1734: 1731: 1729: 1716: 1711: 1707: 1706: 1703: 1700: 1699:Network Update 1697: 1695: 1692: 1689:routing filter 1681: 1679: 1677: 1664: 1659: 1655: 1654: 1651: 1638: 1635: 1633: 1630: 1623: 1621: 1619: 1606: 1603: 1599: 1598: 1595: 1592: 1589: 1586: 1583: 1540: 1539:2,850,000,000 1537: 1534: 1531: 1526: 1522: 1521: 1519: 1516: 1513: 1511: 1508: 1505: 1503: 1501: 1488: 1486: 1482: 1481: 1478: 1465: 1462: 1460: 1457: 1442: 1440: 1438: 1425: 1420: 1416: 1415: 1412: 1399: 1396: 1394: 1392: 1384: 1382: 1380: 1367: 1364: 1360: 1359: 1356: 1353: 1350: 1348: 1338: 1299: 1296: 1294: 1281: 1276: 1272: 1271: 1268: 1255: 1252: 1249: 1246: 1235: 1233: 1231: 1218: 1213: 1209: 1208: 1205: 1202: 1199: 1196: 1193: 1170: 1168: 1162: 1149: 1142: 1138: 1137: 1134: 1121: 1118: 1116: 1113: 1106: 1104: 1102: 1089: 1087: 1083: 1082: 1079: 1066: 1063: 1061: 1058: 1055: 1052: 1049: 1036: 1034: 1030: 1029: 1026: 1023: 1020: 1019:(DNS) provider 1014: 1011: 948: 946: 941: 928: 923: 919: 918: 915: 912: 909: 907: 905: 895: 893: 891: 878: 876: 872: 871: 868: 865: 862: 857: 854: 839: 836: 831: 818: 816: 812: 811: 809: 806: 803: 801: 799: 789: 787: 785: 772: 769: 765: 764: 761: 748: 745: 742: 740: 729: 727: 725: 712: 710: 706: 705: 702: 699: 696: 693: 690: 687: 684: 682: 669: 667: 663: 662: 660: 657: 654: 651: 649: 644:in particular 602: 600: 598: 595: 590: 586: 585: 583: 580: 577: 574: 572: 568: 566: 564: 549: 544: 540: 539: 537: 534: 531: 528: 526: 480: 478: 476: 473: 468: 464: 463: 460: 451: 448: 445: 442: 434: 431: 429: 426: 425:DNS TLD Outage 423: 419: 418: 415: 412: 409: 406: 403: 400: 397: 396:Affected users 394: 391: 388: 374: 373: 353: 351: 340: 337: 323: 322:Remote Sensing 320: 314: 311: 286: 283: 278: 275: 270: 267: 262: 259: 254: 251: 246: 245:Power failures 243: 238: 235: 233: 230: 224: 221: 215: 212: 207: 204: 198: 195: 178: 175: 173: 170: 150: 147: 125: 122: 101: 98: 85:Main article: 82: 79: 77: 74: 15: 9: 6: 4: 3: 2: 4293: 4282: 4279: 4277: 4274: 4272: 4269: 4267: 4264: 4263: 4261: 4252: 4249: 4247: 4243: 4239: 4236: 4235: 4215: 4211: 4207: 4200: 4186: 4182: 4175: 4161: 4157: 4153: 4149: 4142: 4128: 4124: 4120: 4116: 4109: 4095: 4091: 4084: 4069: 4065: 4059: 4051: 4050:Bloomberg.com 4047: 4041: 4033: 4032: 4027: 4021: 4013: 4012: 4007: 4001: 3993: 3992: 3987: 3981: 3973: 3972: 3967: 3961: 3953: 3952: 3947: 3941: 3925: 3921: 3914: 3898: 3891: 3883: 3882: 3877: 3871: 3857: 3853: 3847: 3832: 3828: 3822: 3807: 3803: 3797: 3789: 3783: 3775: 3769: 3761: 3755: 3739: 3735: 3731: 3725: 3709: 3705: 3701: 3695: 3679: 3672: 3657: 3653: 3649: 3645: 3641: 3634: 3619: 3615: 3611: 3604: 3589: 3585: 3584:Bloomberg.com 3581: 3575: 3560: 3556: 3552: 3545: 3529: 3525: 3521: 3515: 3499: 3495: 3489: 3473: 3469: 3468:The Telegraph 3465: 3458: 3442: 3438: 3432: 3416: 3412: 3406: 3391: 3387: 3383: 3377: 3361: 3357: 3351: 3335: 3331: 3324: 3309: 3305: 3301: 3297: 3293: 3286: 3271: 3267: 3263: 3257: 3242: 3238: 3234: 3228: 3212: 3208: 3204: 3198: 3182: 3178: 3171: 3155: 3151: 3145: 3129: 3125: 3119: 3103: 3099: 3093: 3077: 3073: 3067: 3051: 3047: 3041: 3026: 3020: 3005: 3001: 2995: 2980: 2973: 2957: 2953: 2949: 2943: 2928: 2924: 2920: 2914: 2906: 2900: 2886: 2882: 2875: 2865: 2856: 2846: 2840: 2833: 2825: 2821: 2817: 2813: 2809: 2805: 2801: 2797: 2793: 2786: 2778: 2774: 2767: 2765: 2756: 2752: 2745: 2731: 2727: 2721: 2707: 2703: 2697: 2686: 2685: 2677: 2663: 2659: 2653: 2639: 2635: 2629: 2621: 2608: 2600: 2596: 2592: 2585: 2583: 2581: 2579: 2577: 2575: 2573: 2571: 2559: 2552: 2550: 2548: 2539: 2535: 2527: 2521: 2515: 2501: 2500:Freedom House 2497: 2491: 2489: 2487: 2477: 2472: 2464: 2462: 2453: 2449: 2445: 2443:9781450383837 2439: 2435: 2431: 2427: 2420: 2405: 2401: 2395: 2380: 2376: 2370: 2355: 2351: 2345: 2330: 2326: 2320: 2306:on 2021-09-03 2305: 2301: 2297: 2291: 2283: 2279: 2275: 2271: 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Index


Schiphol Airport
Netherlands
internet services
censorship
cyberattacks
submarine communications cables
Internet
Internet censorship
internet access
information warfare
ground invasion
conventional forces
airstrike
natural disasters
Hurricane Florence
Cyclone Fani
Hurricane Laura
Solar superstorms
mesh networks
peer-to-peer
Internet infrastructure

DDoS
Open Observatory of Network Interference
Access Now
Freedom House
V-Dem Institute
OpenNet Initiative
incomplete

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