Today we’re rolling out new security for our users, centered around user/pass authentication. What we had in place before was very good, but our new system is even tougher with even larger password hashes.
We’ve also added security that will kick others out of your account if you change your password. While it’s never a good idea to give out your password, we’ve all done it before. With out new system, the moment you change your password, anyone else who is using your password will be forced out of your account, creating an easy way to lock down your account.
Because of this increased security, most users will have to change their passwords. We apologize for this inconvenience, but better security is always worth it.