A SIEM Solution Alerts a Security Analyst of a High

Multiple Choice

A SIEM solution alerts a security analyst of a high number of login attempts against the company's webmail portal. The analyst determines the login attempts used credentials from a past data breach. Which of the following is the BEST mitigation to prevent unauthorized access?

A) Single sign-on
B) Mandatory access control
C) Multifactor authentication
D) Federation
E) Privileged access management