5/24/22, 7:45 PM Myanmar: Data on internet blocks and internet outages following military coup | OONI Source: OONI measurements collected from Myanmar between 1st February 2021 to 28th February 2021, https://explorer.ooni.org/search?since=2021-0201&probe_cc=MM&until=2021-02-28 All of the circumvention tool websites listed in the above chart were confirmed blocked at least once, as OONI measurements show DNS based interference returning IP addresses that host block pages (59.153.90.11, 167.172.4.60) or an address in private IP space (such as 127.0.0.1 or 172.29.8.1). Most anomalous measurements though show IP blocking, which is not only consistent with what we observe in the blocking of social media and Wikipedia, but which also matches reports regarding the IP blocking of circumvention tools. It’s worth highlighting though that these circumvention tool sites are not blocked on all networks in Myanmar (as illustrated in the above chart), and that the blocking of certain circumvention tool websites does not necessarily mean that the relevant apps are blocked as well (particularly since circumvention tools often rely on a variety of techniques for evading censors). For example, even though the testing of www.torproject.org presented signs of IP blocking on several networks (such as AS18399 and AS135405), the testing of Tor shows that it was reachable on multiple networks (including AS18399 and AS135405) in Myanmar over the last month. As most Tor directory authorities and bridges were reachable when tested from local networks in Myanmar, it was likely possible to use Tor for censorship circumvention. OONI Probe currently only includes tests for measuring the reachability of the following circumvention tools: Tor, Psiphon, and RiseupVPN. We are therefore unable to evaluate whether the apps of the other circumvention tool websites (listed in the above chart) were blocked in Myanmar as well. Other ongoing blocks Apart from the recent blocking of social media and Wikipedia (following the recent military coup in Myanmar), we also observe the ongoing blocking of a number of news media websites and of the site of Justice for Myanmar (justiceformyanmar.org), the blocking of which started in 2020. As part of our recent OONI data analysis, we found a COVID-19 site (coronavirus.app) blocked in Myanmar as well. News media Last year, we reported the DNS based blocking of 174 domains in Myanmar (following a March 2020 directive issued by Myanmar’s Ministry of Transport and Communications), which include 41 news outlets. While they include a few ethnic media websites reporting on the situation in Rakhine, they also include websites https://ooni.org/post/2021-myanmar-internet-blocks-and-outages/ 7/16