A security administrator has been tasked with choosing a method to enhance the organization's authentication process by identifying sign-in attempts that come from geographically distant locations in a suspiciously short period of time. Which of the following best serves the administrator’s purpose?
Mandating biometric authentication to ensure that the user's physical presence is confirmed at each login
Increasing the complexity requirements for user passwords to prevent credential stuffing attacks
Implementing geofencing to alert when users access the system from outside predetermined physical boundaries
Enforcing time-based login restrictions to detect and prevent logins from differing locations within an unrealistic time frame