Single failed login attempt from china. Though could this be any way related to the adobe leak? If you have the list of emails and password, you could try a bunch of commonly used services and see if that works.
> These addresses were used to slowly brute force weak passwords or passwords used on multiple sites.
..."multiple sites" could possibly refer to a compromised list, like Adobe? Of course, it doesn't have to be Adobe - Macrumors was compromised recently, etc etc.
