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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.
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_20091123_US.zip | FTP | 23/11/09 | 23/11/09 | 112.93 MB | 5AF8D4CE08C51D56B0D7604838917A42 |
Supports the following versions of Symantec antivirus software:
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| File Name | Creation Date | Release Date | File Size | MD5 | all |
| NavM9_Installer_20091123_US.zip | FTP | 23/11/09 | 23/11/09 | 113.14 MB | 75D5943EF41D5F3C4D76AED7B6E6D032 |
Supports the following versions of Symantec antivirus software:
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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.