How to prevent third parties from getting your data
Facebook's platform API (aka its application program interface, the software interface that allows other apps to integrate with it) is designed to let other third party apps collect, share, and store your data. Because of this fact, it's accurate to say that the Cambridge Analytica incident was not actually a data breach, but rather an exploitation of Facebook's existing infrastructure, which allows third party apps to obtain tons and tons of user data. However, what you probably didn't know until now is that you can disable it from doing so.
To do this, log in to your Facebook account, and head to Settings. From there, tap Apps on the left hand side and scroll to locate a gray box labeled Apps, Websites and Plugins. Tap Edit. But before you click Disable Platform, you may want to consider the implications of doing so. By restricting third party access to our data, this means you'll be disabling all platform apps including things like Instagram, Tinder, Airbnb, and Twitter. You also will no longer be able to log into sites using your Facebook account. Still, if you want to fortify your data privacy without giving up your Facebook account altogether, this is a big way to do so. For a slightly less drastic method that still protects a lot of your data from being shared, keep reading.