horror movies based on the internet ?

My all time favorite horror movie surrounding the Internet has to be Pulse (letterboxd, wiki), a 2001 J-horror movie by Kiyoshi Kurosawa. At its most basic/least spoilery, it's a movie about ghosts interacting with the living via the Web.

SPREE. It's abt this creepy greasy internet sleuth trying to get famous by murdering ppl. It's horrible and I love

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this is an old thread but we're all going to the world's fair!! not really my thing but it was cool, it's about a teen who gets sucked into this intense online roleplaying game