Google Authenticator -

Google Authenticator is a free, mobile-based application that provides an essential layer of security through . Launched by Google in 2010, it has become one of the most widely used tools for protecting online accounts from phishing and identity theft. How Google Authenticator Works

: When you set up 2FA for a service, a "secret key" (often shared via a QR code) is exchanged between the service and your app. google authenticator

The app uses a algorithm to generate a unique six-digit code . Google Authenticator is a free

: Codes automatically refresh every 30 seconds . google authenticator