I kind of disagree Facebook is a good force. I have noticed that I am getting really heavily tracked and re-targeted on their service now. I don't like using it any more. Your literally giving a mega corporation all your most private information. They have paired up publicly with Acxiom and many other data brokers which mine your credit card data and associate it with your facebook profile. It makes you wonder what they do in private. They definitely need a good security team to keep their secrets secret. Congrats on the role.
Your comment is excellent and the truth. By selling a person's secrets, you control them. Spending habits, political beliefs, sexual preferences, gambling/drinking problems. You are owned when you reveal this data.
Facebook track people through IP addresses, Facebook logos, partnerships, etc. So they know what you say, what you look at, when, who you talk to etc.
If the wrong people get that data (including espionage, change of management etc), it could get VERY ugly.
