Can we trust some uncertified ad-click earning programs?

Google adsense now became a very popular ad and earning tool from exposing your blogs to your visitors.

However, can you trust some kind of uncertified ad-click money making program?

Why not if you make extra 100$ per month, but isn't there any risk for your bank or credit information to be leaked somewhere?

Tell us if you have used those software or web-service.

Use this link for the member-only forum - https://groups.google.com/forum/#!topic/online-goods-review/94cprOnT6ik