[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"glossary-tenant-isolation::en":3,"gloss-cluster-tenant-isolation::en":23,"gloss-next-tenant-isolation::en":9},{"slug":4,"category":5,"name":6,"definition":7,"meta_desc":8,"faq":9,"schema_markup":9,"related":10},"tenant-isolation","security","Tenant Isolation","Tenant isolation is the set of controls that keep one customer's data, compute, and configuration from ever leaking into another's inside a multi-tenant SaaS app. Because you serve many organizations from shared infrastructure, a single missing WHERE clause, a mis-scoped cache key, or a leaky background job can expose one tenant's records to another — one of the most damaging bugs a SaaS can ship. Isolation runs on a spectrum: logical isolation (a shared database with a tenant_id column enforced by row-level security), schema-per-tenant, or full physical isolation (separate databases or clusters per customer). Stronger isolation costs more to run but is easier to prove to security reviewers. Practical note: enforce the tenant boundary in one place — middleware or a query scope — rather than trusting every developer to remember it, add automated tests that assert cross-tenant reads fail, and treat any cross-tenant leak as a Sev-1 incident.","Tenant isolation is what stops one customer's data leaking into another's in a multi-tenant app — one missing WHERE clause or mis-scoped cache key is a breach.",null,[11,14,17,20],{"slug":12,"name":13},"encryption-at-rest","Encryption at Rest",{"slug":15,"name":16},"multi-tenancy","Multi-Tenancy",{"slug":18,"name":19},"rbac","Role-Based Access Control (RBAC)",{"slug":21,"name":22},"zero-trust","Zero-Trust Architecture",[24,28,32,36,39,42,45,48,51,54,57,60],{"slug":25,"category":5,"name":26,"updated_at":27},"audit-log","Audit Log (Audit Trail)","2026-08-24T02:46:37+00:00",{"slug":29,"category":5,"name":30,"updated_at":31},"blast-radius","Blast Radius","2026-08-24T03:30:02+00:00",{"slug":33,"category":5,"name":34,"updated_at":35},"break-glass-access","Break-Glass Access","2026-08-24T02:46:38+00:00",{"slug":37,"category":5,"name":38,"updated_at":35},"bridge-letter","Bridge Letter",{"slug":40,"category":5,"name":41,"updated_at":35},"business-associate-agreement","Business Associate Agreement (BAA)",{"slug":43,"category":5,"name":44,"updated_at":27},"byok","Bring Your Own Key (BYOK)",{"slug":46,"category":5,"name":47,"updated_at":35},"cve","CVE (Common Vulnerabilities and Exposures)",{"slug":49,"category":5,"name":50,"updated_at":31},"data-classification","Data Classification",{"slug":52,"category":5,"name":53,"updated_at":35},"data-loss-prevention","Data Loss Prevention (DLP)",{"slug":55,"category":5,"name":56,"updated_at":35},"data-minimization","Data Minimization",{"slug":58,"category":5,"name":59,"updated_at":35},"data-poisoning","Data Poisoning",{"slug":61,"category":5,"name":62,"updated_at":35},"data-processing-agreement","Data Processing Agreement (DPA)"]