Study: Used USBs for sale still Store Business Documents, Medical Documents, Nude Photos. University of Hertfordshire study found two-thirds of U.S. and U.K. USB drives contained remnant data from the previous owner. This data can be used for a variety of cybercrimes, including phishing attacks, identity theft and various extortion schemes. Despite the risks, USBs remain ubiquitous, especially at trade shows. IBM banned USBs and other portable storage drives from its corporate network in 2018.”]
Source: https://www.govinfosecurity.com/blogs/security-nightmare-users-fail-to-wipe-usb-drives-p-2733