Which of the following protects Android devices against security vulnerabilities?

Encryption protects data at rest and in transit, making it unreadable to unauthorized parties even if they gain access to the device. Regular and controlled updates patch known security vulnerabilities, introduce new security features, and improve overall system stability, thereby reducing the attack surface. Verified Boot ensures the integrity of the device's software stack from the moment it starts up, preventing malicious software from tampering with the operating system before it even loads. Social engineering is a tactic used by attackers to manipulate individuals into divulging confidential information or performing actions that compromise security; it is not a protective measure.