6. Defense in Depth in Practice

Data Center Security Layers

A data center uses multiple layers of defense to protect information and systems.

Administrative Controls

These include policies and procedures that define how security should be managed.

Logical or Technical Controls

These include technical measures such as programmed access restrictions that limit who can use systems and data.

Physical Controls

These include physical protections around the actual systems and storage devices.

Physical Reality of Data

Even with cloud computing and virtualization, data is still stored and processed on physical hardware in a real location.

Main Idea

Data centers are protected by administrative, technical, and physical controls because digital systems always rely on physical infrastructure.