(Or feel the horror when they find that the lines have been cut.)
Were in the post-Internet age and horror movies are finally starting to embrace the advancement.
Theres a film subgenre that perfectly encapsulates just how online we really are.

Host (2020) / Shudder
Sometimes called Screenlife movies, films in this genre take place entirely on computer screens.
The action takes place in Zoom and Skype calls, text messages, and Ring doorbell videos.
Unfriended was the first screenlife movie that proved its actually a killer genre.

Searching (2018)
A father is distraught when he realizes that his daughter has gone missing.
You just have to do it over Zoom!
Thats what happens in this highly rated screenlife horror.

Universal Pictures

Screen Gems

Shudder