So, we had a affiliate last week that was getting very mad at us saying that we do not pay enough and stuff like that. We basically said we wish you the best of luck with any other site you like. Then this guy comes back and starts accusing us of stealing $300 from his bank account. "We never even got his payment information yet..." Anyways, a few days later we are trying to login to our site and we see a malware/ phishing warning come up and we cannot even go to the site. We quickly find a site that helps check and remove malware and submits for removal from the blacklist. They scan our site and find a few questionable files and remove them. Yesterday we were not on any blacklists and today we got an alert saying that we have been added to one of the same blacklists we just got removed from. I must think that this ex affiliate has something to do with it as he was saying "i'm going to ruin your reputation and sue you" My question is what can I do now? How can I prevent this from happening again?