The problem is that Facebook is useful. It may be the only connection you have with certain friends or family members, and many informal groups use Facebook for meetup logistics. For many of us, losing access to Facebook would hurt our real-world relationships and activities. Plus, lots of companies have Facebook pages, and taking those down might result in a loss of business from customers who would find out about the firm only through Facebook. What to do?
On a personal level, there are two ways to think about privacy on Facebook: limiting the information you share with other people on Facebook, and limiting the information that you’re willing to provide to Facebook at all. If Facebook doesn’t have certain data about you, they can’t sell it to the highest bidder, let it be harvested by hackers, or use it in ways you might find creepy.
To control who on Facebook can see what you share, click the ? button on the Facebook Web site on your Mac, or tap the hamburger button in the bottom right corner of the Facebook iOS app and tap Privacy Shortcuts. Then click or tap Privacy Checkup and run through the steps to make sure you’re sharing the right info with the right people. Be sure to lock down or remove any apps that you don’t need, since they can leak all sorts of data.
To ensure that contact uploading doesn’t happen again, in the Facebook iOS app, tap the hamburger button, scroll to the bottom, and then tap Settings & Privacy > Account Settings > General > Upload Contacts and make sure the switch is off. (Some versions of the Facebook app just have Settings, not Settings & Privacy, and show a popover for Account Settings.)
Also, in the iPhone Facebook app, tap the hamburger button again and then Settings & Privacy > Account Settings > Location > Location, and make sure it’s set to Never. And whatever you do, keep Location History off—Facebook doesn’t need to know everywhere you’ve ever been.
If you’re perturbed by the way Facebook’s iOS app is trying to capture your contacts and locations, you could delete it from your iOS devices and rely instead on the Facebook Web site, which can’t access nearly as much information about you. To make it easier to open, in Safari, visit facebook.com, tap the Share button, and then tap the Add to Home Screen button in the bottom row of the share sheet.
Let me leave you with one thought. Always assume that anything you post to Facebook or allow Facebook to have access to could end up on the front page of your local newspaper… or the New York Times. Nothing on Facebook is ever completely private—Facebook has shown it isn’t trustworthy or reliable—and the best way to ensure confidential information doesn’t leak inadvertently is to avoid posting it to Facebook in the first place.
