Lord Director of Security at Twitter:
This week, we detected unusual access patterns that led to us identifying unauthorized access attempts to Twitter user data. We discovered one live attack and were able to shut it down in process moments later. However, our investigation has thus far indicated that the attackers may have had access to limited user information – usernames, email addresses, session tokens and encrypted/salted versions of passwords – for approximately 250,000 users.
The good news is that at least 35% of those were spam accounts. (This statistic hasn’t been verified by anyone — I just made it up.)
Update: See what I mean?