Let’s be real: remembering another password is a nightmare. My brain can barely recall what I ate for breakfast, let alone a 12-character string with “special characters.” So when Instagram offers to log you in via Facebook, you click it like a starving raccoon finding a trash can.
You do this because it feels easy. It feels like cheating at a board game, except the board game is your entire digital identity. You’re basically saying, “Here, Mark Zuckerberg, take my left shoe too, I just want to see that stupid brunch photo.”
The Great Data Potluck
Here’s the thing nobody tells you at the party: when you log in with Facebook, you’re not just opening a door. You’re throwing a massive data potluck where both apps start sharing your secrets like drunk uncles at Thanksgiving. Your Instagram likes? Facebook now knows. Your Facebook friend list? Instagram is already borrowing it.
It’s a surprising fact, but Meta (the creepy parent company) actually uses this to build a “single user profile” about you. They know you like cat videos on Instagram and argued with your cousin about politics on Facebook. They are watching you fold laundry. Okay, not literally, but they know you own a washing machine because you clicked an ad for detergent.