What is the SONAR™ technology?

SONAR™ stands for Symantec Online Network for Advanced Response.

This technology included in newest versions of Norton is able to identify viruses, spyware and other malicious software based on their behavior and network activity even before an according virus definition is released.

Thus, SONAR™ technology can block newly emerging threats hours or even days before other anti-virus software becomes even aware of an emerging security threat.