METHOD, SYSTEM AND APPARATUS FOR PROTECTING ACCESS TOKENS CREATED BY MULTIFACTOR AUTHENTICATION

The disclosure generally relates to method, system and apparatus for multifactor authentication exchange using out of band communication to authenticate a user while defending against the man in the middle attack. In an exemplary method, the disclosed principles provide a multifactor authentication (MFA) exchange, which includes: receiving an authentication request through in-band communication from a first device associated with a user to authenticate the user, the authentication request including a first authentication factor to identify the user; generating a second authentication factor, the second authentication factor further comprising an authorization token; generating an encryption key to encrypt the authorization token and a redirect Uniform Resource Locator (URL) address; and communicating the second authentication factor, the encryption key and the redirect URL address to a second device associated with the user.