Hmm, given that one of those is compromised, I'd say it's more likely that the rest are as well--Bayesian reasoning and all that. (Yeah, I don't actually know m

Hmm, given that one of those is compromised, I'd say it's more likely that the rest are as well--Bayesian reasoning and all that. (Yeah, I don't actually know much about probability :P.) People share passwords all the time. Also, if somebody's computer or email account was compromised, chances are that would also give up the credentials for all of the sites.