Why it matters

Vector DB security shapes RAG safety. Understanding shapes design.

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The architecture

Auth + TLS.

Row-level or tenant isolation.

Encrypted at rest.

Backup + restore.

Vector DB securityAuth + TLSidentity + transitTenant isolationnamespace / rlsBackup + encryptionat rest + off-sitepgvector reuses Postgres security; hosted vector DBs vary widely
Vector DB supply chain.
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How it works end to end

pgvector: Postgres RBAC.

Pinecone / Weaviate: managed access control.

Encrypt vectors at rest.

Poisoning detection.