I would not recommend anyone use a computer without anti-virus protection regardless of what other security protection is installed.. Security begins with your computer and it must be safeguarded at that end.
Anti-virus Software is DeadReally?Why should you use Antivirus software?
Among the ~800 pages of new threat intelligence is a new study that attempts to quantify the benefit of running up-to-date anti-virus (AV) software. The study leveraged data from over a billion systems worldwide and it turns out that systems that do not have up-to-date AV are 5.5 times more likely to be infected with malware than systems that are protected...
IMO, not having an anti-virus working in real-time in the background defeats much of its intended purpose...to protect a computer and prevent malware infection BEFORE
it can damage your system.
How do folks who claim they do not use an anti-virus and never get infected know for certain
that their computer is malware free? Many of today's attackers employ advanced techniques which involve sophisticated Botnets
, Backdoor Trojans
to hide their presence on a computer. Without proper security tools including an antivirus which can detect such malware, you can never be absolutely sure your computer has not been infected.
Further, using unprotected computers on the Internet is a security risk to everyone
as they are prone to attack from hackers, Botnets
, zombie computers
and malware infection. When infected and compromised, malware spreads faster and more extensively, distributed denial-of-service attacks are easier to launch, spammers have more platforms from which to send e-mail and more zombies are created to perpetuate the cycle. Using anti-virus software will help minimize the risk and help to prevent the computer from being used to pass on infections to other machines.