Can following key practices for computer network defense guarantee that intrusions and other malicious acts will not happen?

The statement that following key practices for computer network defense can guarantee that intrusions and other malicious acts will not happen is not accurate. While implementing strong security practices, including firewalls, intrusion detection systems, regular updates, and employee training, significantly reduces the risk of attacks, it does not eliminate it entirely.

Cyber threats are constantly evolving, with sophisticated techniques that can bypass even the best defenses. Attackers can exploit vulnerabilities in software, human error, or other unforeseen factors that may compromise security. Therefore, although a robust defense strategy is essential for mitigating risks and responding effectively to incidents, it cannot ensure absolute protection against all possible intrusions or malicious activity.

In conclusion, while following key practices does improve security posture and resilience against attacks, there is always a level of risk involved in managing computer networks, making the statement false.