Alberto Dainotti

As was the case with last month's internet shutdown in Iran, a small amount of traffic continues to make its way into the country.

The country's recently-developed system of whitelisting enables exceptions to internet blocks for people loyal to the govt.

IODA shows the Internet in Iran has been cutoff from the global Internet since ~7:00 AM UTC. The regime implemented a similar Internet shutdown when Israel attacked Iran in June of 2025.
Follow connectivity in Iran in near realtime:
ioda.inetintel.cc.gatech.edu/country/IR?f...

A Comparative Look at Internet Shutdowns in Iran: 2019, 2022, 2025, and 2026 On January 8th, 2026, the Iranian regime implemented an Internet shutdown amidst national protests. This shutdown is the most sophisticated and most severe in Iran’s history. IODA's longitudinal view ...

The IODA team completed a comparative analysis of the ongoing Internet shutdown in Iran to shutdowns during Bloody November in 2019, Women Life Freedom Movement in 2022, and the Israel-Iran War in 2025. Please read and reach out with any questions.

ioda.inetintel.cc.gatech.edu/reports/a-co...

The country-wide, government-ordered shutdown in Afghanistan is visible in IODA. Starting at 5:00 PM local time, the shutdown is ongoing.

Follow connectivity in Afghanistan in near realtime:
ioda.inetintel.cc.gatech.edu/country/AF?f...

Using IODA for Internet connectivity or outage data? We want your thoughts!

Take our quick user feedback survey and help us make IODA better for our community.

survey.qualtrics.emory.edu/jfe/form/SV_...

#IODA #UserFeedback #InternetOutages #ConnectivityData #DigitalResearch #InternetMeasurement

According to Angola civil society, there was a government-directed Internet shutdown during nation-wide protests on Saturday July 19. IODA observed a ~4-hour shutdown, starting at ~12:40 PM (UTC) and ending ~4:20 PM (UTC).

Angola connectivity on July 19: ioda.inetintel.cc.gatech.edu/country/AO?f...

Iran is experiencing a near Internet blackout today, starting at ~5:00 PM local time. We see significant drops across networks. Some networks, including MCCI and Rightel appear to be responsive.

Follow connectivity in Iran in near realtime:
ioda.inetintel.cc.gatech.edu/country/IR?f...

📢 PAPER REGISTRATION! 🚨
PC Chairs Aruna Balasubramanian (@arunab.bsky.social) & Alberto Dainotti (@albertodainotti.bsky.social) just opened the cycle-2 registration site.

📝 Register your work: imc2025-cycle2.hotcrp.com

Spread the word! 🌐✨

Puerto Rico is experiencing a massive power outage, the impact of which is visible in Internet connectivity in IODA's Active Probing and Telescope signal.

Follow connectivity in Puerto Rico in near realtime:
ioda.inetintel.cc.gatech.edu/country/PR?f...

Syria experienced a ~10 hour Internet outage. IODA data shows nation-wide, near complete outage, meaning Syrians would have been without Internet from 1:50 AM - 12:20 PM local time.

Follow signals in Syria in near realtime:
ioda.inetintel.cc.gatech.edu/country/SY?f...

Commission and the High Representative present strong actions to enhance security of submarine cables Today, in Helsinki, Finland, Executive Vice-President Henna Virkkunen presented the Joint Communication of the Commission and the HRVP to strengthen the security and resilience of submarine cables.

ec.europa.eu/commission/p...

Everyone concerned about data loss right now should learn about the End of Term Web Archive, which I believe has been working on preserving federal websites for the past 8 months. The dataset you fear has been lost may well be here

Just an incredible project. Thank you to everyone involved

Investigating the latest subsea cable cut in the Baltic (h/t @auonsson.bsky.social)

Based on BGP, appears that Latvian State Radio and Television Centre's cable (AS8194) cable was cut at 00:45 UTC (2:45am local) on Sunday morning when it lost transit from Arelion.

www.lsm.lv/raksts/zinas...

The Royal Navy is closely shadowing the Russian spy ship Yantar as it moves through the English Channel.

Seen here, the Yantar is flanked by the frigate HMS Somerset, guarding against what the UK calls "the growing Russian threat to offshore infrastructure in European seas."

Our global study on the state of trust in scientists is now out in Nature Human Behaviour! 🥳

With a team of 241 researchers, we surveyed 71,922 people in 68 countries, providing the largest dataset on trust in scientists post-pandemic 👇🧵https://www.nature.com/articles/s41562-024-02090-5

Tracking the decommissioning of the old Limelight CDN in @ioda-live.bsky.social:

ioda.inetintel.cc.gatech.edu/asn/22822?fr...
ioda.inetintel.cc.gatech.edu/asn/23059?fr...
ioda.inetintel.cc.gatech.edu/asn/26506?fr...

Preventative Maintenance Takes Down Internet in Greenland The Internet in Greenland was down for maintenance earlier today. Internet service to the country of Greenland was down for almost three…

The country of Greenland was offline for three hours starting at 04:10 UTC when Tusass A/S (formerly Tele Greenland, AS8818) was disconnected from the global internet.

Fun fact: Tusass is Greenlandic slang for "talk to you later" (probably after 07:08 UTC 😄)
www.kentik.com/analysis/pre...

Internet connectivity has been affected in Russian regions of Dagestan and Ingushetia. Operator R-line explained, “Due to the temporary blocking of foreign resources on the territory of the Republic of Dagestan, there may be interruptions in the operation of […]

[Original post on mastodon.social]

Undersea Surgeons (Gift Article) The cables at the heart of the lightspeed, globe-spanning internet run across the grimy, perilous, inaccessible deeps of the sea, in places no one ever sees or visits – until the cables break.

My latest collaboration with the NYT is finally out! (it’s been months in the making)
www.nytimes.com/interactive/...

Cuba Faces Blackouts and Internet Outages After National Grid Fails Authors: Dikyton & IODA In October and November 2024, Cuba experienced two major nationwide blackouts that impacted the daily lives of its citizens. Earlier this month, Cuba experienced its most rec...

In English: ioda.inetintel.cc.gatech.edu/reports/cuba...

@IODA and Dikyton teamed up to write a report on the latest #Internet #outages in #Cuba in October and November 2024. Read the report here: 👇 ioda-dev.inetintel.cc.gatech.edu/reports/cuba...

Current status - Importing 17 years of Tweets into BlueSky github.com/marcomaroni-... (minus replies and RT's and dumb stuff)

Finally had some time to dig into the subsea cable cuts in the Baltic Sea that have gotten a lot of attention lately.

Due to the rich fabric of connectivity in the region, the loss of the two cables caused minimal disruption.

However, here are some subtle BGP impacts I was able to identify. 🧵

Anyone Can Buy Data Tracking US Soldiers and Spies to Nuclear Vaults and Brothels in Germany More than 3 billion phone coordinates collected by a US data broker expose the detailed movements of US military and intelligence workers in Germany—and the Pentagon is powerless to stop it.

It's fantastic to see that @wired.com has joined forces with "BR" and Netzpolitik to follow up on the stellar"Adint"-research , focusing on data tracking and how it reveals insame amounts of private data.

www.wired.com/story/phone-...

Russia to spend over half a billion dollars to bolster internet censorship system Russia's digital development ministry plans to allocate nearly 60 billion roubles ($660 million) over the next five years to improve the system used to censor web traffic, a government proposal seen by Reuters shows.

Russia is allocating half a billion dollars to improve its (already highly effective) internet censorship machine. www.reuters.com/world/europe...

@zahrayazdani.bsky.social

Internet Intelligence Lab on LinkedIn: Congrats to our PhD student Zahra receiving the first ever IMC Best Poster… Congrats to our PhD student Zahra receiving the first ever IMC Best Poster award!

Networks recovering from power outages might become vulnerable to cyber attacks by exposing services they didn't intend to. Our PhD student Zahra presented a 1st study of this idea & won the IMC Best Poster Award at IMC 2024! www.linkedin.com/posts/intern...
@pearce.bsky.social @acm-imc.bsky.social

Russian intel / sabotage ship Yantar is smack on top of some of Europes most important comms cable in the Irish Sea.

We know this because she put on her AIS for 4 minutes (ergo, this is a show for an audience).

Last seen a few days ago with an oiler and a frigate. Visual and AIS.

More maps👇🏽👇🏽.

Both @filterbaan and @ProjectAinita reported an #Internet #outage in #Iran today. The outage is visible in IODA and lasted ~5 hours. Local authorities claim the disruption was due to a loss in connection to European routes.
Follow connectivity in Iran […]

[Original post on mastodon.social]

Here is an starterpack of those interested/working/researching in Internet networks go.bsky.app/GkKxDea Will update as more join. Ping with requests