Our company recently encountered a blacklisting of our domain due to a certain computer or computers sending out bad information. I've since run Malwarebytes on all computers but have no idea which computer would have been the cause of the issue. My questions are as follows:
1) Is there a utility or method I can use to determine which PC or PCs had caused the blacklisting problem?
2) How do I know if the problem has actually stopped so we can be de-listed for good (in addition to the obvious of informing employees of the normal cautions when on the internet)
3) Will obtaining a premium version of Malwarebytes for all computers stop this from happening again in the future?
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