Protecting your psp from viruses?

Is it possible to protect your PSP from viruses while surfing the web on it.

Protecting your psp from viruses?liveupdate

normal viruses are designed to attack computer hardware, not PSP hardware, so you would have to go to a site with a PSP virus to get one. In more simple words: most viruses cant hurt PSPs

Protecting your psp from viruses?nortin

Yes it is. Just don't go to unprotected sites and you'll be fine.
I don't think so... I had mine for 3 years and surf the net almost everyday and haven't had any problems so don't worry about viruses. I do clean my cache and cookies after I been on though.