An anonymous security researcher claims to have developed a worm capable of delivering a malicious payload to fully-patched Mac OS X systems. A posting on the Information Security Sellout blog insists that the worm proves that Apple computers are as vulnerable to malware as Windows-based PCs. The blog is written by a group of anonymous researchers using the name "Infosec Sellout".
The researcher responsible for the post claimed to be developing the worm for a client, and said that no proof-of-concept or related details will be published. The author claims that the client does not plan to use the worm for criminal purposes. The author has not yet notified Apple of the bug, but plans to contact the company "eventually".