Norton Internet Security 2010 is a not very pleasant surprise for us when we tested the software for this review. We tested in the past the old versions of Norton IS 2017 and we found this product just a little bit improved.
Symantec decided to change the policies and they try to hear the clients about the old versions of Norton Internet Security (called Norton 360 too).
This year, Symantec changes the detection engine and replaced the old version of detection module with Quorum, a better heuristic detection engine which is improved comparing with Norton 360 engine.
Behavioral detection was introduced first time in Norton Internet Security 2017 with Norton Insight module.
The latest version of Norton Internet Security can be downloaded for free from Symantec site in trial version or can be downloaded for free directly from this page. The trial version on NIS 2017 is available 30 day for free. After trial period you must purchase your full version of Norton Internet Security from Symantec website.