ISIS hackers have hacked tens of thousands of Twitter accounts in revenge for the US drone strike that killed a British ISIS extremist in August. The Cyber Caliphate, a hackers group set up by British ISIS member Junaid Hussain, urged its supporters and followers to hack Twitter accounts to take revenge of Husain’s death. Most of the victims targeted by Jihadis appear to be based in Saudi Arabia though some of the them are British. The extremists also posted hacked personal information, including phone numbers and passwords, of the heads of CIA and FBI.
Source: https://thehackernews.com/2015/11/hacking-twitter-account.html