Today if the first I've read about the Ultimate Bet scandal (same owners as Absolute which recently had a "superuser" account cheating scandal revealed) where it appears the dollar amount taken from legitimate players by cheater accounts is tremendous. A good summary of the allegations is linked below.
One cool excerpt:
Superusers and Silence: How UltimateBet let players get cheated for millions - Two Plus Two Poker ForumAssuming a normal distribution of win rates, the chance that NioNio's results could be explained by variance is 1:131,236,127,000,000,000,000,000.
Expressed another way, 1:131,236,127,000,000,000,000,000 is about the same as winning the powerball jackpot three days in a row.