Abstract: A modular, shielded enclosure engineered to provide structural security for information technology (IT), data, and telecom equipment is provided. The enclosure is composed of individual periphery shields locked together to create an airtight, thermal resistant, fire resistant, waterproof, hermetically sealed facility. In addition, a series of penetration management devices (PMD) and a control panel can be deployed. The enclosures are infinitely configurable independent structures, and may be expanded, reduced, or relocated with ease to give end-users the flexibility needed to manage the ever-changing, highly specialized IT facility.