ALEXANDRIA, Va., July 21 -- United States Patent no. 12,688,504, issued on July 21.
"Hidden factor authentication" was invented by Johan Louw Coetzee (Cape Town, South Africa).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a user verification system to verify whether a user of a secure system is authorised to access the secure system. The user verification system comprises one or more processors and one or more computer memory storage means; stored instructions on the memory storage means for controlling the processor, to create a user profile for a user, which profile input fields require first address such as an email address and second address such as a cellular telephone number; and...