Hackers are getting smarter day by day. The recent incidents of hacking in Yahoo, Gmail, AOL, LinkedIn and others are some of the examples. As hacking incidents are increasing gradually, big tech giants are trying hard to beef up cyber-security. The popular social networking site, Facebook , is one them. To protect Facebook from being hacked, the company has decided to resort to the hackers. Facebook has announced to pay hackers over $400,000 for hunting down security bugs in its system.