Twitter’s information security department has confirmed that 250,000 twitter accounts may have been compromised by the hacker group Anonymous.
Twitter’s director of information security, Bob Lord, said that they detected unusual access patterns including unauthorized attempts to access user data. The data accessed included usernames, email addresses and passwords.
This attack was not the work of amateurs, and we do not believe it was an isolated incident. The attackers were extremely sophisticated, and we believe other companies and organizations have also been recently similarly attacked.
The attack seems to have been limited to usernames, email addresses, session tokens and encrypted/hashed passwords. To protect the Twitter users who may have been compromised, the social media giant has reset passwords and revoked session tokens for accounts suspected of being hacked.