Apple has yet to update the signatures in the Snow Leopard malware blocker, a report observes. Malware protection was added to Mac OS X with Snow Leopard in order to counter growing security threats, namely the iServices and RSPlug trojans which hit before the operating system's release. While the many variants of those trojans can be identified, Apple has not taken steps to protect against DNS changer trojans, some of which actively target Mac users and direct them to phishing websites.
