The Egypt Internet blackout

As the violence and protests develop in Egypt, Renesys, an Internet research firm, published a fascinating overview of what happened to the country's Internet connections. At 22:34 UTC, all the entry points into the country were cut in a matter of minutes. The four major Internet providers in Egypt were ordered to cut all links, by removing the 3,500 routes that packets could take, leading to no valid path for the traffic to reach any addresses inside of the country, save for one small network. Almost a day later, they estimate that around 93% of traffic is still cut off.

Unlike earlier protests in Tunisia and other countries, where governments tried unsuccessfully to block invidual sites like Twitter and Facebook, people still finding ways around the blocks through proxies, this time the complete isolation from the global Internet was an unprecedented event. It's still not known what will happen to the economy of the country if these measures stay for longer than a few days.

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