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rigpa

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Jan 23, 2013
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Do too many security programs cause trouble? I deleted evertthing but Norton.
 

techkid

David
Joined
Sep 1, 2004
Messages
2,339
lunarlander is right. More than one real-time (i.e. running in the background) antivirus programs causes a system nothing but trouble, and may even miss an infection should one occur.

I think you can have a second AV installed, if you should suspect something, but definitely be sure to disable real-time protection on one of them.
 

Cookiegal

Karen
Administrator
Malware Specialist Coordinator
Joined
Aug 27, 2003
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117,936
It's best not to have more than one anti-virus programs INSTALLED on the machine. Even though you think you may have disabled one, there are often some components that are still active and this can cause conflicts.
 
Joined
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Apart from not having 2 antivirus programs, generally several layers of protection is fine. For example, you can have SpywareBlaster, Sandboxie, and Antilogger all running together and they will be fine. In fact, it is recommended that you have several layers of protection and not not just rely on a single antivirus to protect yourself. Antivirus is an post-infection remedial tool, that rips out the attack mechanism, and different products have different abilities in making a complete recovery. SpywareBlaster on the other hand, prevents bad things from installing in the first place. Sandboxie offers a confined playpen for the attacker, and cleans out that virtural playpen with one click. So attackers can't really install anything to your real system. Antilogger is a specialized tool to detect keyloggers. Usually keyloggers are installed in stage 2 of an attack, and aims to steal username and passwords to your bank accounts, credit card accounts,and email. along with just logging your regular activities for the attacker to read at his pleasure. So as you can see, having multiple security programs offers multiple defenses, and is necessary in todays security arena.
 

flavallee

Frank
Trusted Advisor
Joined
May 12, 2002
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82,085
The mistake that many newbie/novice users make is assuming that a stand-alone antivirus program will protect their computer 100% against all the "nasties" that can invade it.

That's why you need layered protection from multiple security-related apps.

And of course you need to practice safe and responsible computing habits.

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