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Symantec.com > Business > Security Response > Virus Definitions & Security Updates
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Virus Definitions & Security Updates

Top Threats
Accurate and up-to-date information on the top threats.

Virus Definitions

View threats newly detected or recently modified.

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Security Updates

Additional protection content for security products

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Multiple Daily Updates Learn More

  • Symantec Endpoint Protection 11
  • Norton AntiVirus 2008 and newer
Virus Definitions created 11/8/09
Virus Definitions released 11/8/09
Defs Version: 111108t
Sequence Number: 102290
Extended Version: 11/8/09 rev. 20
Total Detections (Threats & Risks): 5169649

Daily Updates Learn More

  • Symantec AntiVirus
  • Norton AntiVirus 2006/2007
Virus Definitions created 11/8/09
Virus Definitions released 11/8/09
Defs Version: 111108b
Sequence Number: 102278
Extended Version: 11/8/09 rev. 2
Total Detections (Threats & Risks): 5168046

Weekly Updates Learn More

Virus Definitions released 11/4/09

Symantec Endpoint Protection Security Updates Learn More

Proactive Threat Protection: 11/6/09 rev. 17
Network Threat Protection: 11/3/09 rev. 1
Norton AntiVirus for Mac Virus Definitions released 11/6/09
Symantec AntiVirus for Handhelds Virus Definitions released 10/27/09

Certified Intelligent Updater

The Intelligent Updater virus definitions are fully tested and certified by Quality Assurance. Intelligent Updater is an alternate delivery method for certified definitions, which consists of an executable file that can be downloaded and run manually.

Frequently Asked Questions

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