Editing Norton Internet Security (section)

====2003 (6.x)====
Version 2003 was announced September 16, 2002. This version added ''Norton Spam Alert'' to reduce [[Spamming|spam]]. The filter scanned the whole message and its context, rather than looking for keywords.<ref>{{Cite news|title=In the war against spam, a few small victories|url=https://www.usatoday.com/tech/news/techinnovations/2002-10-09-spam-wars_x.html|publisher=[[USA Today]]|access-date=31 July 2009}} {{Dead link|date=September 2010|bot=RjwilmsiBot}}</ref> A [[POP3]] client had to be used. When a message was identified as spam, Norton inserted a phrase, by default "Spam Alert:", in the subject line. Users could create a rule to delete or move flagged messages. Users could create strings of text for Spam Alert screen when classifying messages. In ''[[PC Magazine]]'' testing, Spam Alert mistakenly classified 2.8 percent of legitimate e-mail as [[e-mail spam|spam]]. 47 percent of spam slipped past the filter. Although [[false positive]] rate was low, the feature did not fare well at finding actual spam.<ref>{{Cite news|author=Larry Seltzer|title=Norton Internet Security 2003|url=https://www.pcmag.com/article2/0,2817,844438,00.asp|date=February 25, 2003|publisher=PC Magazine|access-date=2 August 2009}}</ref>

The updated main interface offered green and red indicators to show which features were active and which needed attention. The firewall updated features. A Block Traffic button in the main interface blocks all incoming and outgoing Internet traffic from an [[URL]]. Another new feature, Visual Tracker, graphically mapped attacks to their origin. The firewall blocked all port scans conducted by CNET, stealthing each one.

Following the [[Nimda]] and Code Red worms, this version scanned all incoming and outgoing traffic for suspicious data exchanges against a routinely updated database, a feature ported from Norton Internet Security 2002 Professional Edition. Connection to the offending computer was automatically severed if the traffic matches a database item.<ref>{{cite web|author=Gregg Keizer|title=Norton Internet Security 2003|url=http://reviews.cnet.com/internet-security-and-firewall/norton-internet-security-2003/4505-3667_7-20218674.html|date=September 22, 2002 |publisher=CNET|access-date=27 July 2009}}</ref><ref>{{Cite news|author=Howard Millman|title=News Watch: Security; From Symantec, a Hybrid Of Firewall and Spam Buster|url=https://www.nytimes.com/2002/09/12/technology/news-watch-security-from-symantec-a-hybrid-of-firewall-and-spam-buster.html|date=September 12, 2002|work=The New York Times|access-date=27 July 2009}}</ref>

Symantec announced a Professional Edition on November 19, 2002. Data recovery tools allow users to recover deleted or malware-damaged files. The inclusion of a [[data erasure]] tool  allowed users to delete files while minimizing the chance of recovery. Web Cleanup removes browser cache files, history, and cookies. To maintain [[dial-up]] connections, Connection Keep Alive simulates online activity during periods of user inactivity. Norton Productivity Control enables users to filter Internet content and block newsgroups. When used with User Access Manager, multiple filtering profiles could be created, assigned to different users.<ref>{{cite web|title=Symantec's New Norton Internet Security 2003 Professional Edition Delivers Unsurpassed Protection Against Multiple Online Threats to Small Businesses/Professionals|url=http://www.symantec.com/press/2002/n021119.html|date=November 19, 2002|publisher=Symantec|access-date=31 July 2009|archive-url=https://web.archive.org/web/20091013062854/http://www.symantec.com/press/2002/n021119.html|archive-date=2009-10-13|url-status=dead}}</ref>