If you don’t want Facebook knowing every site you visit online — data it uses to target you with ads — follow this advice from the Washington Post’s tech guy, Geoffrey A. Fowler:
Facebook is giving us a new way to glimpse just how much it knows about us: On Tuesday, the social network made a long-delayed “Off-Facebook Activity” tracker available to its 2 billion members. It shows Facebook and sister apps Instagram and Messenger don’t need a microphone to target you with those eerily specific ads and posts — they’re all up in your business countless other ways.
Even with Facebook closed on my phone, the social network gets notified when I use the Peet’s Coffee app. It knows when I read the website of presidential candidate Pete Buttigieg or view articles from The Atlantic. Facebook knows when I click on my Home Depot shopping cart and when I open the Ring app to answer my video doorbell. It uses all this information from my not-on-Facebook, real-world life to shape the messages I see from businesses and politicians alike.
You can see how Facebook is stalking you, too. The “Off-Facebook Activity” tracker will show you 180 days’ worth of the data Facebook collects about you from the many organizations and advertisers in cahoots with it.