Thank you for your reply, @itman , I didn't call, because I'm just studying in this country for 3 months, I do not know the language, almost nobody speaks here in English, and that taxi service just works through app (not saying that it's impossible to call, but they were tourists as well). Normally I wouldn't even stop when they asked me, but I just wasn't thinking rationally after day I had. Trust me, he (older man) wouldn't run away for me with my phone.. I mean, he could try even with his 3 older friends, but the chances.. and also the street was not crowded, not empty, people here would quickly see what is going on and stop him, but he had suit and everything, he just wouldn't run with his friends with my mobile, that would be very unlikely.
Your advice about password and name.. you think that he would connect to my hotspot again ? I never create hotspots, that was my first time doing it, I have it even blocked through data saver and that's why I'm asking for help here, because I don't know anything about it. And even if the password and ID remain unchanged (they don't), it's a city with population of 18 milion people, I doubt that I will ever meet him again so I hope that won't be the problem. I'm just curious about things he could and maybe did to my phone by that 1 minute of connection, with my phone safe in my hands.
Thanks for answer, @TomFace. The password is complicated enough I think, and my hotspot will be off for another couple of years (I didn't use it with any of my phones,.. never). What do you mean that I'm already screwed ? So far nothing happend, signs of my mobile being hacked are not there, for example battery waste, data usage, unknown applications.. I checked my phone with Eset and origina built in antivirus and there was also no problem so far. Can you please give me advice what else should I check ? I really want to be sure.
Thank you for response, @Marcos. That's probably the most calming response I could possibly get and I hope that it's like you said. When I was giving him my internet, that's what was running in my head (I heard risks about connecting to unknown Wifi, etc.), but then I realized that I don't have enough knowledge about this topic and maybe some similar scams happend and I just don't know about it. That's why I asked experts here. Hopefully it will be like you said, you definitely know more than I do about this. and if that's what you think, I feel better now.