Titan Security Key is described as 'Google Titan Security Keys offer two-factor authentication to prevent phishing and man-in-the-middle attacks. They support FIDO standards and come in USB-A, USB-C, and Bluetooth formats, ensuring compatibility with various devices and services' and is an app in the security & privacy category. There are four alternatives to Titan Security Key for a variety of platforms, including Mac, Windows, Linux, Web-based and Android apps. The best Titan Security Key alternative is YubiKey. Other great apps like Titan Security Key are Nitrokey, SoloKeys and OneSpan DIGIPASS FX7.