That's why BTCguild has a payout lock. I'm pretty sure you had a similar password on Mt. Gox as your BTCguild account.
someone keeps repeatedly changing my wallet address on BTCGuild, but the payout lock owned them the first time, and the email-verification owned em the second time... hax away hax0rs.. i spose.. the box has nothing on it but ubuntu and the miner running so even if the box is compromised they cant get anything
A++ to btcguild for some common sense security maybe u should give mark kaspareto some lessons...