Stolen password after using air bnb

I'm not sure I'm asking in the right subreddit. If not, let me know and I'll take it down. And I would be appreciative if anyone knows a more appropriate subreddit.

I'm staying at an air bnb that is owned by my mother in law. I signed into Netflix and noticed that the subtitles were in Arabic. But I just assumed that the previous renter had Arabic subtitles turned on. However, two days after that, I noticed that someone in Tunisia is using my account. So I looked it up and the official language in Tunisia is Arabic.

Does anyone know if the subtitles is saved on your device? If not, then my account was probably compromised before I got to the air bnb.

But I'm worried that somehow, someone is stealing accounts using my mother in laws house. Anyone have any experience with this?