Example Concept: Multi-factor authentication (MFA) involves using two or more independent credentials to verify a user's identity. For remote workers, this typically includes a password (something they know) and a second factor such as a mobile app-based authenticator, a hardware token (something they have), or biometric verification (something they are). Implementing MFA can significantly reduce the risk of unauthorized access by ensuring that even if one factor is compromised, the attacker cannot gain access without the additional factor.