Norton Internet Security, developed by Symantec Corporation, is a computer program that provides malware prevention and removal during subscription period and uses signatures and heuristics to identify viruses. Other features include a personal firewall, email spam filtering, and phishing protection. Symantec distributes the product as a download, a boxed copy, and as OEM software.

Norton 360, developed by Symantec, is marketed as an "all-in-one" computer security suite. The package includes an antivirus, a personal firewall, a phishing protection program and a backup program. What distinguishes this suite from Norton Internet Security is the inclusion of file backup and PC maintenance capabilities.

“Powered by Norton 360 Technology. XFINITY Internet customers can now get the #1 ranked Norton Security Suite at no additional charge. Protects against viruses, spyware, Trojan horses, worms, bots, and rootkits. Blocks browser, OS, and application threats; protects against infected Web sites. Blocks phishing Web sites and authenticates trusted sites. Available at no extra cost to XFINITY Internet customers, Norton Security Suite protects...”

Norton 360, developed by Symantec, is marketed as an "all-in-one" computer security suite. The package includes an antivirus, a personal firewall, a phishing protection program and a backup program. What distinguishes this suite from Norton Internet Security is the inclusion of file backup and PC maintenance capabilities. The Premier Edition has all the functions of the standard edition, with the difference that it comes with 25 GB of o...

Norton Business Suite is a Comcast branded versions of Norton 360 with one difference. This Comcast versions does not offer online backup space. The software does include a backup utility but you can only backup to local disks, DVD’s, thumb drives, etc.