Hello,
Symantec Insight is the only system in the world that tracks the age, prevalence and security rating of nearly every program file on the internet. Because Insight knows what files are new or changed, Insight takes the most important advantage of cyber-criminals, their ability to generate millions of unique threats, and turns it against them.
Insight separates files at risk from those that are safe, for faster and more accurate malware detection.
Again, If i am not mistaken, Symantec Insight is 1 thing which differentiate itself from other security products in the world.