Data center physical security risk rarely comes from a single dramatic scenario. It comes from a small number of recurring structural factors that show up on almost every site.
Multi-tenancy is the first: when different customers share a facility, access segregation has to be airtight, because a breach of one tenant’s trust in the physical boundary damages the operator’s credibility with every other tenant.
Single points of failure in the security system itself are the second — a security system without N+1 redundancy on access control and monitoring is itself an availability risk to a facility whose entire value proposition is uptime.
The third is drift between the security design and how the facility actually grows: white space gets reconfigured, new tenants arrive with different requirements, and coverage or access zoning that was correct at commissioning stops matching the physical layout within a few expansion cycles.