I've got a site that I did some back-end programming on, and want to make sure there's no security vulnerabilities... If you PM me, I'll send you a zipped copy of the source code, and if you can find a dangerous problem with the code, I'll send you $10 (more if the issue is critical)... Note: only established members, please.
Didn't you felt that $10 for penetration testing is too low... It would be better if you suggest a reasonable checking cost, and then an amount per vulnerabilities and its fixation. What do you think?