Twitch have reported there has been a security breach on their servers, they also state that user information may have been accessed. The result is Twitch taking some serious steps by resetting everyone’s current password and revoking all account associations with Twitter and YouTube. Users will have to change their password and re-associate their accounts with other services again.
Twitch have also urged users to change their passwords with other services, if it was the same as the one used with Twitch. While Twitch have yet to determine the extent of the attack, they will be in direct contact with anyone affected.