A couple of newb questions

[Lukeirado]

Hello, everyone.

I just bought the orange box and I want to try some TF2 hacks, I would like to know ... Do they get detected really often ? Does VAC work on detecting the hacks or most of them will just be undetected forever ?

Just a couple of simple questions for safe-playing =)

[.WiRED]

If it is a material hack you wont get banned :)

[Lukeirado]

Good, good, that's all I needed to know =)