Attackers wield Firefox exploit to uncloak anonymous Tor use

Attackers wield Firefox exploit to uncloak anonymous Tor users

Publicly available exploit threatens all Tor users unless they take action now.

This helps explain how the FBI got in. Anybody using software that auto-updates can have something like this slipstreamed into their updates.

http://arstechnica.com/security/2013/08/attackers-wield-firefox-exploit-to-uncloak-anonymous-tor-users/