computer file suspicious

rujuta4me  Sims 4 should definitely not be placing files directly in Documents (rather than inside the Electronic Arts folder), and it shouldn't be able to read this file either.  Your white-hat hacker friend may be able to allow permissions again and then use Process Monitor, or a similar app, to see whether anything is accessing this file as you play Sims 4.  I'd be interested in the results.

I don't have this file anywhere on my Mac or on my Windows PC after running the game post-update, and I haven't seen any other reports of it appearing either.  So it doesn't appear to be a new feature, at least.

If you want to send me the file, or parts of it, feel free to upload it somewhere and DM me a link.