Norton Internet Security, developed by Symantec Corporation, is a discontinued computer program that provides malware protection and removal during a subscription period. It uses signatures and heuristics to identify viruses. Other features include a personal firewall, email spam filtering, and phishing protection. With the release of the 2015 line in summer 2014, Symantec officially retired Norton Internet Security after 14 years as the chief Norton product. It was superseded by Norton Security, a rechristened adaptation of the Norton 360 security suite. Symantec distributed the product as a download, a boxed CD, and as OEM software. Some retailers distributed it on a flash drive. Norton Internet Security held a 61% market share in the United States retail security suite category in the first half of 2007. History In August 1990, Symantec acquired Peter Norton Computing from Peter Norton. Norton and his company developed various applications for DOS, including an antivirus. Symantec continued the development of the acquired technologies, marketed under the name of "Norton", with the tagline "from Symantec". Norton's crossed-arm pose, a registered U.S. trademark, was featured on Norton product packaging. However, his pose later moved to the spine of the packaging, and then disappeared. Users of the 2006 and later versions could upgrade to the replacement software without buying a new subscription. The upgraded product retains the earlier product's subscription data. Releases were named by year but have internal version numbers as well. The internal version number was advanced to 15.x in the 2008 edition to match the Norton AntiVirus release of the same year. As of the 2013 (20.x) release the product dropped the year from its name, although it still was referenced in some venues. 2000 (1.0, 2.0) Norton Internet Security 2000, released January 10, 2000, was Symantec's first foray beyond virus protection and content filters. Its release followed an alliance between Internet provider Excite@Home and antivirus vendor McAfee.com to provide Internet subscribers with McAfee's new firewall software, McAfee Personal Firewall. Version 2000s firewall, based on AtGuard from WRQ, filters traffic at the packet level. It could block ActiveX controls and Java applets. Other features included cookie removal, and banner ad blocking. ZDNet found the ad blocker to remove graphics that were not ads, breaking pages. Adjusting the settings fixed the problem, however the process was complicated. ZDNet noted the lack of information presented concerning attacks the firewall blocked. Norton LiveUpdate downloads and installs program updates. The