What security apps should I install if I open my Wifi?

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I am swayed by Bruce Schneier’s article on opening your home network:

Steal my Wifi – http://www.wired.com/politics/security/commentary/securitymatters/2008/01/securitymatters_0110

The caveat is "If I configure my computer to be secure regardless of the network it’s on, then it simply doesn’t matter."

Can you tell me specifically what software and setups I should have to provide this extra security?

- I already have a firewall (Sygate cus Zone Alarm messed my system up)
- I turned off file sharing

Do I need to do anything else? And what software will tell me who is using my wifi besides myself?

Assume that the risks of using the internet regardless of connection are understood. What additional precautions are necessary for using an open wifi?
As state, I already have a firewall. Answers like "get a firewall" indicate you didn’t read the question.

Likewise "don’t do it" is not an answer to my question… It’s an opinion.

Are there any security experts that can answer this or at least point me to who can?

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4 Responses to “What security apps should I install if I open my Wifi?”

  1. 1
    Bill M Says:

    You may not like to hear it but running your wifi in the open is the worst possible thing that you can do. People can use your Internet connection to download child pornography or other illegal activity. DON’T DO IT!!

  2. 2
    Nucklearknight is Reborn Says:

    Don’t open your Wifi. It’s pointless and not worth it. People around you will start to use it and make it slow. Just leave it protected.

  3. 3
    alphaone Says:

    u can open ur wifi. it doesnt slow ur computer or internet acces down at all. for internet security programs i would suggest, mcafee suite 3. this program blocks and destroys any virus.
    And if u do get a serious virus i would suggest teh program "Search and destroy." this program estroys any harmful cookies and trojans. serious viruses

  4. 4
    What You Know Bout That Says:

    a Firewall

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