Dominate GIAC Foundational Cybersecurity 2025 – Unlock Your Cyber Skills!

The choice identified as correct is indeed the appropriate selection as it highlights that a firewall is not a type of malware. A firewall serves as a security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. Its primary function is to protect systems from unauthorized access and threats, distinguishing it fundamentally from malware, which is designed to harm, exploit, or otherwise compromise systems.

In contrast, a virus, spyware, and a Trojan horse all fall under the category of malware. A virus is a self-replicating program that attaches itself to clean files and spreads throughout a computer system. Spyware collects personal information without users’ knowledge, often serving the purpose of financial theft or identity fraud. A Trojan horse disguises itself as legitimate software but, when executed, can cause harm or grant unauthorized access to attackers.Therefore, recognizing these differences helps to clarify the nature of firewalls as protective measures rather than harmful entities like malware.