Titan Security Keys are built with a hardware chip that includes firmware engineered by Google to verify the keys integrity. Each key leverages FIDO standards to cryptographically verify your identity and URL of the login page, preventing an attacker from accessing your account even if you are tricked into providing your username and password. The keys are appropriate for any security-conscious user or enterprise, and we recommend that all users, especially those at higher risk such as IT administrators, executives, politicians, and activists consider signing in via security keys.”]
Source: https://security.googleblog.com/2019/07/titan-security-keys-are-now-available.html