I have received worms (eeew!) from what appeared to be Mudcatter e-mail addresses. (2 or 3 of the messages) These didn't come from the folks it said they came from, but my guess is someone on somebody-or-other's huge mailing list got infected. At least it was somebody with a lot of Mudcatters' addresses.

I've also been getting spam with other Mudcat names in the "To" or "CC" headers. Some spammer has harvested these from either an e-mail, Mudcat (but other folks would be getting the spam too) or someone's computer through a back-door virus.

What it means is that if you use Microsoft Outlook (usually it's that program) and don't have adequate protection, you're putting everyone in your address book at risk.