Signature Anti-Virus does not adequately protect you from today’s Malware
Today’s malware acts much differently and can disguise itself more effectively than previous generations of malware. The designs of most anti-virus do not take that into account. Malware today can bypass these anti-virus scanners. Cybercriminals are getting more adept at obfuscating their malware so that it can easily avoid most of the most commonly used anti-virus engines.