Sophos Certified Engineer Practice Exam

The feature that enables the protection of sensitive data from unauthorized access is encryption. Encryption works by converting data into a code or cipher that can only be read or decrypted by those who possess the correct decryption key. This ensures that even if unauthorized individuals gain access to the data, they would not be able to interpret it. Other options serve different protective roles: web filtering focuses on regulating and controlling web traffic to block harmful content; a firewall serves as a barrier between a trusted internal network and untrusted external networks, controlling traffic based on predetermined security rules; and endpoint protection is designed to secure endpoints like computers and mobile devices from various threats, but it does not specifically focus on data confidentiality like encryption does.