The mitigation strategy that uses the principle of something the user knows and has is known as two-factor authentication (2FA).
Two-factor authentication adds an extra layer of security to the user’s online accounts by requiring them to provide two different types of information to verify their identity. The first factor is usually something the user knows, such as a password or a PIN. The second factor is something the user has, such as a physical device like a smartphone or a security key.
By combining these two factors, two-factor authentication significantly reduces the risk of unauthorized access to the user’s accounts. Even if someone manages to obtain the user’s password, they would still need access to the second factor to successfully log in.
Implementing two-factor authentication is a highly recommended security measure, as it adds an additional barrier against potential hackers and unauthorized individuals. Many online services, such as email providers, social media platforms, and banking institutions, offer two-factor authentication as an option to enhance account security.
For more information on two-factor authentication and how to enable it for various online services, you can refer to this external link: [insert relevant link here].