So let me get this straight. Are you claiming:

A) Somebody hacked your account and made a bet using your entire balance (in which case, how did you know the balance was missing since you couldn't access it anymore?)
or B) You used autobet and you kept losing bets until it cleaned out your balance?

If B, then I hate to break this to you, but this is why I keep telling people never to use Martingale on their bets, since there will come a time when you hit the small probability that each of the 10,20,30 bets you make will all lose.

Heck, just yesterday I lost 0.19mBTC playing Stake Dice, and that wasn't even Martingale I was using: It was fixed amounts of BTC wagered (0.01mBTC -> 0.03BTC when I lost that -> I won that bet so I did another 0.03mBTC -> lost that and wagered 0.5mBTC -> lost that and let more blank 0BTC bets play -> finally wagered 0.1mBTC over 49.5 when I was reasonably confident that it would hit, ended up losing that too -> quit because I didn't feel like depleting my entire bankroll on some unlucky dice game).