Grid Authenticator - Pattern-based Authentication

Pattern-based, also called GrIDsure Authentication is a convenient pattern-based authentication solution that
overcomes the weakness of passwords without the need for software to be installed or hardware to be provisioned.

Pattern-based Authentication works by presenting the user with a matrix of cells during enrollment containing
random characters, from which the user selects a Personal Identification Pattern (PIP). Every time the challenge grid
appears, the characters in the cells are different, so the user is always entering a one-time passcode.