Main menu (IT)

Mac OS Scareware

May 27, 2011

IT has been made aware of a new phishing scam targeting Mac users. This scam works by redirecting users from legitimate to fraudulent Web sites and then warning that their computer is infected with a virus. Users are then prompted to download Mac Defender, MacProtector, or MacSecurity anti-virus software to resolve the issue. Users should not install this software because the goal is to obtain credit card information which may be used for fraudulent purposes.

Affected Software

  • Mac OS X 10.6
  • Mac OS X 10.5
  • Mac OS X 10.4

IT Recommendation

  • Do not install Mac Defender, MacProtector, or MacSecurityanti-virus software.
  • If you believe you have your computer is infected, see Apple's instructions on how to remove this malware, or contact the IT Help Center.
  • Apple will release a Mac OS X update in the next few days to address this issue. Test and apply the updates as soon as they are released.

For more information, read "Apple fights fake security makers" and "New Mac Defender Variant, MacGuard, Doesn't Require Password for Installation".