Fire detection and suppression systems and water sensors help to detect and prevent fire and water damage to equipment. Microsoft datacentres use climate control to monitor and maintain optimized conditioned spaces for staff, equipment, and hardware. Datacentre sites are strategically selected to minimize risk from a variety of factors, including floods, earthquakes, hurricanes, and other natural disasters. Microsoft employs a variety of safeguards to protect against environmental threats to datacentre availability.

Logical access to Microsoft 365 infrastructure, including customer data, is prohibited from within Microsoft datacentres. Only required personnel are authorized to access Microsoft datacentres. Access to physical datacentre facilities is tightly controlled by outer and inner perimeters with increasing security at each level, including perimeter fencing, security officers, locked server racks, integrated alarm systems, around-the-clock video surveillance by the operations centre, and multi-factor access control.

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