What is the importance of not using vendor-supplied defaults for system passwords?

• A. It enhances security by reducing the risk of unauthorized access.
• B. It speeds up system startup.
• C. It improves hardware compatibility.
• D. It ensures vendor support.

Answer: (A)

Default passwords are well-known and commonly used by attackers. If you leave vendor-supplied defaults in place, an unauthorized user can gain access with little knowledge about the environment, making initial compromise and potential privilege escalation much easier. Replacing them with strong, unique passwords removes that easy entry point, strengthening authentication and reducing the risk of unauthorized access. This is a fundamental defense-in-depth practice that stops attackers from exploiting an already-known credential. The other options don’t address authentication risk: default passwords don’t impact startup speed, hardware compatibility, or vendor support.