If someone uses your personal hotspot of iphone 5 what can they see?

I was using my personal hotspot via USB and then I realised it had 2 connections. I immediately turned it off.

However now I'm afraid because after this I got a call off a blocked number.

If someone hacked into my Wi-Fi from my phone would they be able to see contents such as pictures on my phone?

I'm very scaredz thank you

Well, if your photos are connected to any Wi-Fi related things, then maybe, but if they are just in your library, then I think it's ok. I don't know

Are you using a secure password for your hotspot? This is very important to prevent others from piggybacking off your connection and using it without your permission. On an iPhone 5 you can choose "Turn on Bluetooth" or "Wi-Fi and USB Only".