A hand, holding a USB flash drive, with a laptop in the background. - Sergeyklopotov/Getty Images One of the best uses for your PC's empty USB ports is housing a USB security key. What this does is ...

To protect your data, you can lock your USB ports from working with USB sticks. You can use one of these free USB port-locking software to do so easily: URC Access Modes Nomesoft USB Guard Windows USB ...

The best way to secure your personal computer against prying eyes is to use a hardware security key like a YubiKey. That's what I've done for my laptop, which doesn't have a biometric login. Without ...