When using Windows 11, if you execute any action that is protected by 2FA or a Security Key, you may receive a Windows Security prompt Making sure it’s you.

Boost Windows 11 security by using a USB security key or drive. Add a strong offline layer of protection to prevent unauthorized access to your PC.

However, using a hardware security key can be faster and easier than getting a code sent to you every time. It's like using a key to enter your home.