What is the most effective measure an individual can take to significantly reduce the risk of unauthorized access to their personal accounts, even if their password is stolen or compromised?

The correct answer to the question "What is the most effective measure an individual can take to significantly reduce the risk of unauthorized access to their personal accounts, even if their password is stolen or compromised?" is Option B: Enabling Multi-Factor Authentication (MFA)..

The other options — A) Regularly changing their Wi-Fi password., C) Using a virtual private network (VPN)., D) Installing antivirus software on all devices. — are incorrect for this Computer Science question. As explained above: Multi-Factor Authentication (MFA) adds an essential layer of security by requiring a second form of verification (e.g., a code from a phone, a fingerprint) in addition to a password, making it much h…