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Norton AntiVirus Definitions are the latest anti-virus detection files. The installer will automatically update Norton AntiVirus virus definitions and engine files to detect and repair the most recently discovered Mac viruses. This file is a self-extracting archive which contains the Norton AntiVirus Virus Definitions Installer. Once downloaded and expanded on your hard drive, simply double-click on the Installer and the appropriate files will be installed on your computer.

What's New

Version 05/05/2014:
  • Includes the latest virus definitions


  • OS X 10.4 or later
  • Symantec Endpoint Protection 11.0.6 through 12.1.3, Norton AntiVirus 11.x, or Symantec AntiVirus 10.2

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Norton AntiVirus Definitions User Discussion

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Most Helpful Reviews...

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from MisterE

Just stopped by to poo on Norton haha, I really can't believe they still bother.

Thanks for reminding me to update my ClamXav definitions :D

7 people found this review helpful
Version 05/02/2013
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Jjpong Member IconComment+121

I first started using Norton's antivirus software in 1994, I think. I won't support it any more. This software made itself a subscription product one day out of the blue without giving me a choice. I hope nobody will support their Mac version.

Reply0 replies
Version 11/01/2013
Marcossi Member IconComment+120

I believe Norton would be better of selling swim suites in the Antarctic. (The experts say, that in a couple of hundred years it will be warm there)

Reply0 replies
Version 10/11/2013
r2xman Member IconReview+26

Norton is Turdware.

Reply0 replies
Version 08/20/2013
Shralldam Member IconComment+62

What the…?! Almost 450 Mb for virus definitions?

Reply1 reply
Version 06/13/2013

Right, 478.6 MB WTF?!?! I can't 52 people have downloaded this crap so far.

Jazzyguy Member IconComment+3699

They make the viruses so they have (raison etre) a reason to be in existence. If there were no viruses they would have no reason to be in existence so they simply make them!

Reply0 replies
Version 06/04/2013
Jwenrick Member IconReview+5

I shouldn't even give it a half star. Norton used to write good software MANY years ago in Classic, but then screwed up royally when OS X came out.

Does anybody even use their software anymore?

Jack W

Reply0 replies
Version 05/27/2013
MisterE Member IconReview+530

Just stopped by to poo on Norton haha, I really can't believe they still bother.

Thanks for reminding me to update my ClamXav definitions :D

Reply0 replies
Version 05/02/2013
Jazzyguy Member IconComment+3699

They are the persona that manufactures the viruses for us to digest. They haven't gotten around to OSX yet as it is far better to infect Windows as that is where the real money is.

Reply0 replies
Version 05/02/2013
Foulger Member IconReview+282

I have removed so many Norton anti virus apps from school computers that come pre installed with no viruses found. In many cases after installing ClamXav, several viruses have been found. I regard Norton as a virus in itself - it invades a hard drive with no good purpose.

Reply0 replies
Version 12/25/2012
BillyGoGo Member IconReview+6

Hopefully all these antivirus companies will finally blow away with latest security measures of Mac OS X. Stop to sell your scareware! I believe most viruses are written by these companies themselves.

Reply0 replies
Version 11/19/2012
user icon+0
Version 01/23/2014
user icon+1318
Version 06/08/2011
user icon+107
Version 01/12/2011
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Current Version (05/05/2014.x)


Downloads 109,782
Version Downloads 260
Type Utilities / Virus
License Free
Date 05 May 2014
Platform OS X / Intel 32
Price Free