(Unconfirmed) Twitter hacked, accounts leaked.

Apologies for the shortened title. I don't very much like either this or the original title ("Twitter Hacked, Thousand of account leaked, millions compromised by Mauritania Attacker"), but there's that no-editorialised-titles rule.

I don't know if this leak is legitimate. Has this been covered by other sources, or has anyone downloaded the dump to see?