Facebook wants you to share as much information about yourself as possible. It wants your friends to do the same. After all, the more personal details you feed into the network, the less likely you are to pack your data suitcase and leave. Advertisers tend to like all that data too. All this means your default privacy settings probably don’t jibe with how you want to actually share your information. Luckily, you’re not defenseless. With a few small setting adjustments, you can take back control and make sure you share only what you want with the world.