Security alert: New Trojan Horse apps said to attack the Mac.

Some security mavens have long theorized that as the Mac becomes more popular, we’d start to see malware that would start targeting the platform. Sure enough, this morning’s crop of email blasts from PR firms included a few notices of trojans that are affecting Mac users.

Two Mac oriented security companies SecureMac and Intego are reporting attacks targeting Mac users. They both seem to be legitimate.