Actually, delete Facebook if it will make you feel better, but the reality is that it doesn’t matter at this point and it won’t do any good.1 Here’s the backstory: A big news story broke this week about a British company, Cambridge Analytica, that used data harvested from a Facebook quiz by an academic researcher to compile profiles on millions of people that it then (maybe) used to target political ads. And because those ads may have been for Trump, everyone lost their minds and said they needed to save themselves from Facebook.
The fact is that you’re closing the barn door after the horse is gone, but you can take control of some of what Facebook knows and shares about you.
I say the horse is out of the barn because this harvesting of Facebook data for political purposes is old news. In 2012, the Obama campaign was openly bragging about the Facebook data it collected on the young users of its app. It’s the same data that Cambridge Analytica was seeing. And keep in mind that the data that Obama got six years ago is still very useful and has probably been dispersed into a bunch of successor organizations. They’re also been collecting all this data for however long you’ve been signed up and they don’t delete it when you quit. They’re also not the only one. This kind of Big Data harvesting is happening every day through Google’s ad networks and Amazon’s sales records and your music playlists and your brick-and-mortar purchases. This is the reality of the world we live in. So deleting your Facebook profile is just one drop in the bucket.
However, as I said, you can take back some control. For Facebook, you can limit what data it shares. For one thing, stop using your Facebook or Google profile to create logins on other sites. It is so tempting to do so because it makes life easier not to have to manage more passwords. For that I say, get a password manager.2 But you should know that if you do use your Facebook or Google profiles (it’s often OAuth or Open Authorization login), you are giving both Facebook and the site you’re signing into access to more data about yourself. In fact, that other site can pull in all kinds of data from your FB profile like your friends, your likes and dislikes, contact info, birthdays and more. This is all Big Data gold.