Re: 2fa choices
Authlogics (Authlogics.com) provides 1.5FA, where the challenge grid that is used to generate the PIN is presented on the login screen, so you don't need a phone. It also supports 2FA and 3FA as well as, uniquely, allowing 2-way authentication so a call centre can verify that they are who they say they are (e.g. a bank)
Biting the hand that feeds IT
