Does tethering have any security issues on iPhone

Hello!

I would like to clarify if it will be possible to know that someone can access my phone through the Wi-Fi distribution? The situation is extraordinary, the stranger asked to distribute Wi-Fi for a couple of minutes, I did not suspect that something bad could happen. But then I found articles where it says that it can be scammers, and they use such a scheme. What to do, what to do. Thank you!

[Re-Titled by Moderator]