China Censors Facebook.net, Blocks Sites With “Like” Buttons
Summary: Chinese censors appear to have inadvertently blocked access to connect.facebook.net, the resource behind Facebook "like" buttons, causing web requests from within China for a large number of sites to be redirected to wpkg.org. Researcher Nicholas Weaver said the block was quickly corrected, but the effect lingered because it got into DNS caches, leaving millions of Chinese surfers unable to reach sites that are not normally censored.
What's compelling: A brief misstep in censorship spread through DNS caches and disrupted access to a huge number of normally uncensored sites, showing that a single routing error inside a national filtering system can reach millions of users well beyond its intended target.
Read the original at Krebs on Security ↗
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