Yvo Schaap from yvoschaap.com writes: "Facebook holds an unprecedented amount of personal data and content in quantity as well as in quality, which can't be compared to any other (online) entity. There lays also one of their biggest operational risks. After finding the leak, I disclosed the details to Facebook's security team. After confirmation, my disclosure of the exploit accessing a user's account was awarded with the bounty of... $4,500."