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Virus Definitions & Security Updates

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

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Multiple Daily Updates   Learn More
Symantec Endpoint Protection 11
Norton AntiVirus 2008 and newer
Virus Definitions created
Virus Definitions released
Defs Version:
Sequence Number:
Extended Version:
Total Detections (Threats & Risks):

Daily Updates   Learn More
Symantec AntiVirus
Norton AntiVirus 2006/2007
Virus Definitions created
Virus Definitions released
Defs Version:
Sequence Number:
Extended Version:
Total Detections (Threats & Risks):

Weekly Updates released   Learn More

Norton AntiVirus for Mac Defs released

Symantec AntiVirus for Handhelds Defs released

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.