What is the term for security procedures that protect hardware, network, and software from intrusion?

The appropriate term for security procedures that protect hardware, network, and software from intrusion is system-level security. This encompasses a broad range of practices and measures designed to safeguard the overall integrity, confidentiality, and availability of an organization's IT environment. System-level security involves the implementation of firewalls, intrusion detection systems, antivirus software, and encryption techniques that work to defend against unauthorized access and malicious attacks.

Access-level security focuses more on controlling who has permission to access specific resources within a system, which is a subset of the broader category of system-level security. Data-level security is concerned with protecting the actual data stored within systems, such as databases, rather than the broader framework that secures hardware and software. User-level security typically refers to the measures put in place to authenticate users and manage their permissions within a system, again representing a narrower focus than system-level security itself.

Incorporating various security techniques at the system level is essential for creating a robust defense against a wide array of threats targeting IT resources.