Product manual

Norton Internet Security also provides different
profiles to configure your scan performance. When
you use the Full Scan profile, Norton Internet Security
follows the Blacklist technique to scan your computer.
It scans all of the files on your computer against the
signatures that it obtained during definition updates.
When you use the Standard Trust or High Trust
profile, Norton Internet Security follows the Whitelist
technique to scan the files based on their confidence
level. This way, Norton Internet Security significantly
reduces the time that is required to scan your computer
completely for security threats.
The Whitelist technique that Norton Insight uses also
helps in heuristic detection of suspicious applications.
Normally, the execution behavior of well-known
applications appears identical to the execution behavior
of unknown applications. Such behavior results in false
identification of good applications as suspicious, and
therefore, necessitates security applications to
maintain a low heuristic detection threshold. However,
keeping a low detection threshold does not provide a
complete heuristic protection against malicious
applications. Norton Internet Security uses the
Whitelist technique that helps maintain a high
heuristic detection threshold. It excludes well-known
applications from heuristic detection to prevent false
detection of well-known applications and to ensure a
high detection rate of malicious applications.
Viewing the files using Norton Insight
Norton Insight provides information about the Files of
Interest that are available on your computer. Norton
Internet Security lets you view specific categories of
files based on the option that you select in the Norton
Insight - Application Ratings window.
115Monitoring your system's performance
About System Insight