Whether you’ve got pesky roommates, or just want an added layer of security, adding a YubiKey requirement to log in to your home PC or laptop can be a great way to improve your security. This will require that your YubiKey be plugged in each time you log in to your computer. This is especially useful if you’re also using a YubiKey for your password manager or online accounts, since you’ll likely be plugging it in regardless then. Whether you’re looking for added security or just think having a hardware token to log in to your devices is cool, here’s how to set up YubiKey login on macOS and Windows.