A number of web sites have been hacked and details dumped, most notably, on image hosting service ImageShack, which had all its files exposed in a file dump. Symantec was also hacked, with an online portal of the company being accessed and the names, email addresses and phone numbers of what were said to be researchers being released. The details were dumped in a number of Pastebin files. The hackers imply that they used a vulnerability in the open source control panel ZPanel to get access to the Symantec site, but are less forthcoming about how they got access to ImageShack.

They do refer back to an earlier 2009 attack on ImageShack by hacker RoMeO, though. After that attack ImageShack said it would harden its security and the hackers in the current disclosure say "Well, we like a challenge, so we decided to find out what changes were made". In Symantec's case, the hackers claim that "All the other major AV corps are owned too, yours just pissed us off the most."

Other incidents included a tweet from @57UN which published source code to VMware's ESX kernel. In a blog posting, the company confirmed that what has been leaked is source code that dates back to 2004 which was previously leaked. VMware says that it is investigating what actions to take next.

There were also a number of site defacements on, for example, NBC.com which has already been restored, an Argentinian bank (cajapopular.gov.ar), and some distributed denial-of-service (DDoS) attacks on Turkish government sites. It is though unclear if all the attacks are being carried out on behalf of the Anonymous hacktivist collective; parts of the collective have been calling for 5 November to be a day of hacks as #OpNov5 but only some of the attacks mention Anonymous.