Introduced on September 20, 2010, Google Authenticator is a free, software-based security implement for Android, iOS, and BlackBerry mobile devices. It facilitates two-factor authentication for various services and programs such as online accounts, file-hosting services, and password managers. Google Authenticator utilizes TOTP (Time-based One-time Password Algorithm) to generate six to eight-digit codes that users must provide in addition to their normal login information (i.e., username and password).

Authy, Internet terms, Mobile device, One-time password, Password, Security question, Security terms, Username

  • How to protect yourself while on the Internet.
  • How to prevent unauthorized computer access.
  • What is a safe way to remember my passwords?
  • How do I know what websites I can trust?
  • Computer security help and support.