Problem with Apple iPhone authentication scheme is their reductive logic of eliminating one of three basic authentications by using OR logic, instead of AND log

Problem with Apple iPhone authentication scheme is their reductive logic of eliminating one of three basic authentications by using OR logic, instead of AND logic. In short, they are still single-factor authentication. https://www.pearsonitcertification.com/articles/article.aspx?p=1718488 https://www.pearsonitcertification.com/articles/article.aspx...