> For the complete documentation index, see [llms.txt](https://docs.glesys.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.glesys.com/security/security-measures/environmental-and-physical-security.md).

# Environmental and physical security

Glesys protects facilities and infrastructure against physical threats and environmental hazards.

### Key elements:

* **Physical security zones:** Defined security zones (general/sensitive/perimeter) with appropriate controls.
* **Access control and monitoring:** Centralized access control for sensitive areas, surveillance, alarm systems, visitor management, and log retention practices.
* **Resilience measures:** Crisis preparedness includes considerations such as power redundancy and response routines for major disruptions.