Personally, I would avoid plugging in random dongles- unless my curiosity got the better of me.
This unemployed London man clearly knows his shit- he plugged the stick into a random library computer!
Clearly the most obvious thing to do.
What a mistake that was. Just to hand it in they wanted my name, address, contact details, statement of where and when I found it, what I had done with it since finding it... after standing-around for 10 minutes waiting for the duty officer to saunter down. What an ordeal.
Earlier this year I found another phone in a park and took it to the EE store, as it was branded as one of their phones. "Thanks mate! We'll get it back to its owner. Here, have a coffee and a bun on us for being an honest guy!"
I know which option I'd choose again in future. I don't blame the gentleman in the story for going to a paper rather than the police, especially having found something the mere possession of which could get him arrested.
https://arstechnica.com/information-technology/2015/10/usb-k...