Norton AntiVirus, developed and distributed by Symantec Corporation, provides malware prevention and removal during a subscription period. It uses signatures and heuristics to identify viruses. Other features include e-mail spam filtering and phishing protection.

Symantec distributes the product as a download, a box copy, and as OEM software. Norton AntiVirus and Norton Internet Security, a related product, held a 61% US retail market share for security suites as of the first half of 2007. Competitors, in terms of market share in this study, include antivirus products from CA, Trend Micro, and Kaspersky Lab.

Norton AntiVirus runs on Microsoft Windows and Mac OS X. Version 17.5.0.127 is the latest Windows build. Windows 7 support is in development for versions 2006 through 2008. Version 2009 has Windows 7 supported update already. Version 2010 natively supports Windows 7, without needing an update. Version 11.1.1 is the latest Mac build.

Version 2010 (Version 17.0)

Version 2010 is now available. It was released on September 9, 2009 Several features have been updated in this release, including SONAR, now dubbed SONAR 2. It now uses more information to determine if an application is truly malicious. Norton Insight can present users with information about the origins, activities, and performance of applications along with reputation data. A new feature codenamed Autospy helps users understand what Norton did when malware was found. Previous releases removed threats on sight and quietly warned users, potentially confusing when users are deceived in downloading rogue security software. Much of this information is placed on the back of the main window; a toggle button switches between the sides. Symantec has also added Windows 7 support. Aside from that, Symantec has also added the Norton Download Insight to prevent drive by drive downloads.

My Opinion:

I used 2 versions of Norton Anti Virus (2004 – 2007), This software can protect information and it’s a famous software in information security , but I had some problems with Norton :

- The price of this software is high in compare to other anti viruses.

- If you have old system boot up takes over 10 minutes.

- When antivirus is scanning for virus, speed of computer is low because it needs high memory

- I think McAfee of Kaspersky is better than Norton antivirus specially in internet security.

- When I had this antivirus it couldn’t recognize Blaster virus and it can be a big problem.