Apple Mac OS X versions 10.4, 10.5, and 10.6 are the targets of a new campaign of phishing attacks that aim to infect systems with a fake antivirus application called MacDefender.
Mac OS X 10.4, Mac OS X 10.6, Mac OS X 10.5
Malware also installs a login item in your account in System Preferences.
Administrators are advised to run both firewall and antivirus applications to minimize the potential of inbound and outbound threats. Users are advised not to open unsolicited e-mail attachments. Users should verify that attachments are safe before opening them.
Apple provides security updates for the Mac exclusively through Software Update and the Apple Support Downloads site. User should exercise caution any time they are asked to enter sensitive personal information online..