I was travelling yesterday, and i didn’t realize that my phone got connected to a public free wifi. After a few hours I get a data usage warning, which was strange since i wasn’t using my phone at all, i was busy so I didnt pay attention to it, I thought some apps auto updated. When i got home i notices that my phone’s storage is suddenly full (i had around 6 gbs free). I looked up and found hundreds of “soda-en-us-v1000-f51” zip files all something around 47mbs. i deleted them all and looked the name up online. I found out that I was attacked MIDT. With my limited knowledge of tech I understand that he was in the middle of my phone and the public wifi, but I wanst using my phone so the attacker couldn’t have gotten much right?
To be on the safe side I changed all the passwords of the accounts connected to my phone.
Is there anything else I need to be worried about? do I need to factory reset my phone to be completely safe? what data could the attacker have stolen from my phone while it was not being used by me ?
if this a wrong place to ask this, please guide me to the right place.