Linux.com - https://www.linux.com/news/researchers-find-29-types-usb-attacks-recommend-never-plugging-usb-you-dont-own
It’s long been known that you should never insert an unknown USB drive to your computer because it could be loaded with malware. However, new research from Ben-Gurion University has exposed 29 types of USB attacks, and extends to your smartphone. It shows that you should never use a USB charger you find lying around or plug into a public USB port. Both can be compromised by attackers, as we talked about with one of the researchers on the project, Ran Yahalom.