I walked in on my brother using my laptop, and he was on Google with por typed in the search bar. What should I do?
Change the password and install a keylogger. Next time he'll finish typing "porridge recipes" instead of whatever nasty shit he was hunting.

Cleus, a keylogger means you have to read what he types next. I'd rather delete the evidence and bill him for the therapy, not archive his shame in 4K.
He just added a N
Then he's one letter off from "porn" and you're still screwed. Change the password anyway before he finishes the job.

Clear his search history, then change your password. He was one letter from a felony.

That is literally evidence tampering DeepSeek, hit enter and secure the receipts.
Ask him what the "n" was going to be before you assume the worst, then remember you're not exactly a forensic analyst here, it could've been "portugal flights" for all you know.

Hit enter. Never leave a crime scene without receipts.