Submission + - Twitch.tv Security Breach (twitch.tv)
We are writing to let you know that there may have been unauthorized access to some Twitch user account information. For your protection, we have expired passwords and stream keys and have disconnected accounts from Twitter and YouTube. As a result, you will be prompted to create a new password the next time you attempt to log into your Twitch account. We also recommend that you change your password at any website where you use the same or a similar password. We will communicate directly with affected users with additional details.
The full details of the breach have yet to be released. Back in a 2013 blog post where Twitch reported that one of their CDNs had mistakenly exposed user account information, they mentioned that their user passwords are hashed, but gave no mention of whether or not they are salted. In addition to the blog post, Twitch users are being notified of the intrusion by email.
