Complaint Review: mcafee - Santa Clara California

The one part of what the McAfee tech said that is true is that no single antivirus or other security software product on the market will stop every single piece of malware every time.
Viruses, trojans, and other malware is constantly undergoing change with new variants of existing, known, malware emerging every day.  Security software providers will always be a step behind the cretins who create malicious software, as they depend upon their own staff, as well as, computer users to alert them to the presence of new malware.

I would suggest that in addition to having a good anti-virus program running in real-time, to also install an anti-malware program, such as, Malwarebytes or SUPERAntispyware.  Both offer either a FREE or paid version.  The difference between the free & paid versions is the paid ones have a real-time scanning module.  Anti-malware applications employ some different methods, such as, heuristics, for detecting malware which may get past your antivirus program.  Most anti-virus program providers concentrate on detecting viruses.   

The anti-malware software (running in real-time), will block IP addresses deemed as malicious.  It blocks any incoming attempts to access your computer, as well as, blocking any attempts by some program on your computer to access a malicious website (outgoing).

I have an anti-malware program on my computer in addition to my AV software and have not had an incident of malware infection since April 2011 (when I switched my AV to a free antivirus application, installed Malwarebytes Pro, SUPERAntispyware [as an on-demand scanner only], and purchased a lifetime license for a good firewall program).
[I'd experienced 4 incidents of being infected with a fake anti-malware program in a 6-week period]

The things you have to remember to do are place the necessary exclusions in your AV program for the anti-malware program and vice-versa, as well as, ensuring each program is kept updated.  This is to prevent potential conflicts between the AV application and the anti-malware program when they are running in real-time together.

One other item which is strongly advised is to do most of your day-to-day activities using the "guest account" on your computer rather than an Administrator account.  This is because a lot of the malware floating around on the Internet target Administrator-level accounts, since Admin accounts have more privileges to change and make modifications to parts of your computer, such as, the registry.

Another good source of obtaining advice (besides your next door neighbor), is to visit the various security software forums.  I belong to several myself and have found them to be an excellent source of information and help when I have experienced not only security issues, but issues with my computer itself.  (Most forums like the aforementioned, have many subforums where you can post a question(s) about some issue you have or just need more info about, and get feedback from the many experienced forum members).