1. Protect your PC

I suggest you use Mozilla Firefox with AdBlock Plus and NoScript add-ons. Don't forget to clear all cookies (and if you want all personal data) when you logout from a PTC site. The new versions of chrome and IE 8 Come with built in ‘cloaked surfing, Firefox will not be far behind.

 

2. Do not use the same password in every PTC site you join

3. Do not cheat

4. Invest only, if you can afford to lose all your money.