AntiVirus for Macintosh

As new threats emerge, Symantec immediately builds new protection updates and makes them available for download on a subscription basis. If your subscription has expired, click here.

Attention: Virus definitions for Norton AntiVirus for Macintosh versions 7-8 will no longer be updated after August 1, 2008. To continue receiving updated virus definitions, please upgrade to a newer version of Norton AntiVirus for Macintosh.

The virus definitions installer you should download depends on the type of processor your Mac has (PowerPC or Intel), the Mac OS version, and the version of Norton AntiVirus for Macintosh or Symantec AntiVirus for Macintosh you are running.

File Name Creation Date Release Date File Size MD5 | all
NavM_Intel_Installer_20100728_US.zip | FTP 07/28/2010 07/28/2010 154.07 MB A92051059E541DD5AEECC8CAA1EC4B8B

Supports the following versions of Symantec antivirus software:

  • Symantec Endpoint Protection for Macintosh on Mac OS X (Intel processor)
  • Norton AntiVirus for Macintosh 11.x on Mac OS X (Intel processor)
  • Symantec AntiVirus for Macintosh 10.2 on Mac OS X (Intel processor)

File Name Creation Date Release Date File Size MD5 | all
NavM9_Installer_20100728_US.zip | FTP 07/28/2010 07/28/2010 154.28 MB B479C7A4781992F694089F578D8AC4D6

Supports the following versions of Symantec antivirus software:

  • Symantec Endpoint Protection for Macintosh on Mac OS X (PowerPC processor)
  • Norton AntiVirus for Macintosh 11.x on Mac OS X (PowerPC processor)
  • Norton AntiVirus for Macintosh 10.x on Mac OS X (PowerPC or Intel Processor)
  • Symantec AntiVirus for Macintosh 10.2 on Mac OS X (PowerPC processor)
  • Symantec AntiVirus for Macintosh 10.1 on Mac OS X (PowerPC or Intel Processor)
  • Symantec AntiVirus for Macintosh 10.0 on Mac OS X (PowerPC or Intel Processor)

The attached installer will automatically update Norton AntiVirus for Mac virus definitions and engine files to detect and repair the most recently discovered Macintosh and PC viruses. Once downloaded and expanded on your hard drive, simply double-click on the Installer and the appropriate files will be installed on your computer.