USB drives are extremely convenient to store large amounts of information – they’re portable and easy to carry around, which then make USB drives a prime candidate for attackers to use. Many attackers will infect a computer with malware, which detects when a USB device is plugged in. It will then infect the USB device, and when it is plugged into a different computer, it will infect that system as well. In addition to spreading malware, USB devices pose the risk of losing confidential data. In order to prevent both cases, it’s important to encrypt the files on your USB, back them up regularly, and make sure not to attach unknown USB devices to your computer.