Twitter attributed the massive hack to a 'coordinated social engineering attack,' but so far no one has been held responsible for the hack.
In response, Twitter said it was investigating the breaches but did not provide further explanation. The company disabled verified Twitter users' ability to tweet and modified their accounts. TechCrunch reported that a person involved in the underground hacking scene told them that a person who goes by 'Kirk' generated over $100,000 in hours.
The investigation is currently ongoing, and so far, no one has been held responsible for the hack.