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#21
Not exactly. NIS still does full File Scans periodically.
If it Done a Full File scan say, yesterday, then today if a 'Trusted" file has not changed since that last "Full' scan it gets skipped.
If it changed for some reason, it would have been scanned at the time of change.
And, (I think its weekly Ill have to check), A full scan runs. meaning Everything gets scanned again.
On top of all this you also have SONAR3.
I wouldn't call it less secure by any means.