A cloud service provider requires strengthened security measures for access to its administrative interfaces due to increased reports of password-related breaches in the industry. Which method should the provider implement to enhance the security of administrator logins while maintaining efficient access?
Mandatory access control
Multifactor authentication (MFA)
Single sign-on (SSO) with Security Assertion Markup Language (SAML)
Certificate management for public key infrastructure (PKI)
Role-based access control (RBAC)