Hackers attacked Tor, the anonymizing service, earlier this month in an incident that may have compromised a number of hidden services. Tor Project Director Roger Dingledine said that its possible the attack wasnt carried out with malicious intent, although the effect is harmful in any case. He suggested that the researchers behind a recently-cancelled talk scheduled for Black Hat 2014 may be behind the attack. The Tor project has since removed the offending nodes, and pushed a software update that prevents the specific type of attack used from functioning.”]