I only use a mac, and while i dont use the same password everywhere, i had used some of them in more than one place. So tonight my gmail was accessed, recently my facebook, and before that i had gotten someone using my debit card fraudulently. what are my options? i downloaded iantivirus and it found one infection so far on my imac. im on my mbp at the moment. i also cleared and reset safari. should i be reformatting to be sure? the mbp came up clean on scan, but still..