multi-tenancy
Safeguard articles tagged "multi-tenancy" — guides, analysis, and best practices for software supply chain and application security.
6 articles
RBAC vs. ABAC vs. ReBAC: choosing an access-control model for multi-tenant cloud apps
Google's Zanzibar paper (USENIX ATC 2019) showed relationship graphs authorizing access with sub-10ms latency at massive scale — here's when RBAC or ABAC beats it instead.
Running Multiple Custom Controllers Without RBAC or CRD Collisions
Kubernetes CRDs are singletons by group and kind, and RBAC has no tenant concept — two facts that quietly break most multi-controller clusters.
Secure multi-tenant SaaS access control patterns
Broken Access Control has topped OWASP's Top 10 for two straight cycles, found in 100% of tested apps in 2025 — most of that risk starts with one missing tenant_id check.
SaaS Container Security: Protecting Multi-Tenant Workloads
SaaS container security is the set of controls that keep containerized, multi-tenant applications isolated, patched, and hardened from build through runtime. Here is the practical playbook.
Multi-Tenant Isolation for FedRAMP HIGH
How Safeguard achieves hard multi-tenant isolation in a platform that meets FedRAMP HIGH — the boundaries, the proofs, and the trade-offs we accepted.
MCP Server Multi-Tenant Isolation
Practical guidance on isolating tenants on shared Model Context Protocol servers, covering identity, data, compute, and observability boundaries at production scale.
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