Product · Vector Layer Defense

Watch every embedding your retrieval depends on.

Stack Beacon monitors vector stores for poisoning, drift, and unauthorized access — closing the blind spot every RAG application carries by default.

12M
Embeddings Watched
4stores
Native Integrations
99.4%
Poisoning Detection
90s
Drift-to-Alert
Coverage

Vector stores are the soft underbelly of RAG

Most teams treat their vector DB as a black box. Attackers don't.

Poisoning Detection

Statistical and semantic anomaly detection for adversarial embeddings injected into retrieval corpora.

Drift Monitoring

Distribution shift alerts when embedding model upgrades silently corrupt retrieval quality.

Access Auditing

Who queried what, with what filter, returning what chunks. Full forensic timeline for every retrieval.

Sensitivity Labeling

Auto-classify embeddings against your data taxonomy — block retrieval of sensitive content for unauthorized callers.

Reindex Safety

Pre-flight checks before reembedding: detect content drift, missing source docs, and chunker regressions.

Multi-Tenant Isolation

Verify tenant boundary enforcement at the index level — catch cross-tenant leaks the platform missed.

Frequently Asked

Questions teams ask before deploying

Straightforward answers about scope, integration, data handling, and rollout.

Which vector stores are supported?

Pinecone, Weaviate, pgvector, Chroma, Qdrant, Milvus, OpenSearch k-NN, and Vespa. SDK available for custom stores.

How do you detect poisoning?

Three-layer: statistical outlier detection on embedding distributions, semantic clustering for adversarial content, and lineage checks against source documents.

Does this require write access to our store?

No. Read-only monitoring is the default. Optional remediation hooks require explicit policy grants.

How does it scale?

Tested at 50M-vector indexes with sub-second alert latency. Sampled scanning for billion-vector deployments.

Ready to See It Live

See what's hiding in your vector store

48-hour scan of your production index. We've never run one without finding something.