A security guard in a surveillance room watches monitors with video surveillance cameras, next to a server with the inscription Tier III and an access system with a code panel.
Physical security and access control in modern Tier III data centers

Modern data centers store valuable data and support online services, making physical security just as important as digital protection. Even the most advanced cybersecurity systems are powerless if an intruder can access the server room or if a fire damages the equipment. In high-class facilities like Tier III data centers, physical protection is a top priority—since uptime and data safety directly depend on it.