There are groups of people that are mailing out USB drive to business and home users. If you find one in a parking lot DO NOT keep it just toss it in the trash. If you get one in the mail unexpected again DO NOT plug it in to your computer. Just trash it.
There is a scam tied with this USB drive. This drive can very will contain a malicious software that can do harm to you and your computer. They can download malware and/or ransomware to your computer and you not know it.
To get more detail information you can go to
Robert’s Computer Service