Discussion: How conscious are you about security?

I've noticed that consumer-centric security topics are trending lately among discussion boards:

Running serveral anti-viruses:

This seems like a logical step-up in preventing virus risks if put in analogy that two security guards patrolling are better than one. In reality though, anti-virus protection doesn't marginally improve by the quantity but rather the quality of the service running, therefore citing the law of diminishing values in this practice. You're really better off with one; while running two scanners may give you a little more protection, one has to consider that it also may be eating more resources than its worth. Good anti-viruses have frequent virus definition updates which counts more than the actual scanner; how else is it to enforce prevention when it doesn't know what the latest threats are?

Windows Firewall does not support outbound filtering:

Yes, yes it does. Before I go into that, firewalls filter data two ways: inbound data is any foreign data coming into your computer and outbound is then the outward flow of data. By default, the Windows Firewall is set to prompt the user to allow program access to the internet although other programs may still access the internet left unprompted. Therefore you can say that it's semi-on by default, if you require a total lockdown of your computer: you may completely turn outbound filtering on by invoking wf.msc from the Start Menu and going to Action -> Properties and setting Outbound connections to Block. This actually increases security by several notches as some viruses and trojans tend to 'call home' further compromising you as private information might be sent out. It also brings about a hassle that from now you will not be prompted whenever a program needs to access the internet in which case you need to create separate firewall rules for each application.

Some third-party firewalls have outbound filter on by default and prompting for access but I'm content using Windows Firewall... in fact, ever since Service Pack 2 of Windows XP came out with the improved firewall, I never used any other firewall since.

Windows Defender is not enough:

I can partly agree with this, I personally use another free on-demand spyware scanner Spybot - Search & Destroy to complement Windows Defender. I won't get into a comparison on which of the two is better, but I particularly like the feature of Spybot called Immunization. Immunization blocks you from accessing a populated list of computers/hosts that Spybot maintains through updates. In these list are known phishing websites and reported compromised hosts with malicious intent. While in the years of use I've never stumbled into any of these sites myself (there are thousands) but its nice to know that I never will. Spybot also includes a small program called TeaTimer that monitors changes made to the Windows Registry. I don't understand who TeaTimer caters to though, considering that well off techies would often know what changes should be committed to the registry and wouldn't need intervention and non-techies might end up making wrong approvals and rejections causing more havoc. I don't use it myself.

How paranoid are you about computer security?