Do we have to full scan a petabyte to get started?
No, and the deployment model assumes you will not. Metadata only pre-scanning maps the estate without reading content, smart sampling gives you a first assessment of what each source holds, and full scans get pointed at what the sampling flagged. Depth is set per source, so the inventory can stay current instead of being rebuilt once a quarter.
How do we know the classification is right?
Outside tests and an internal workflow both back it. Forrester scored BigID 5 out of 5 on tuning to improve accuracy and on enrichment for classification. Intuit ran 20 vendors against a 40,000 record challenge and BigID won it at 96.5% weighted precision and recall. Inside the product, agentic supervision has classification check its own work, and findings go to the data owners who can tell a false positive from a real one.
Does this find our AI agents, or only the data they touch?
Both, and they are two different jobs. The models and agents are discovered as assets, sanctioned and unsanctioned, with the identity each one runs under and the data in its reach, then monitored as they change. The data is read and classified, inside RAG pipelines, vector stores, and prompts as well as in the stores behind them. One inventory holds both, which is what lets an AI guardrail and a data policy describe the same object.
Does it find regulated data like PII, and support GDPR and other regulations?
Yes. The same data classification covers personal, financial, and health data. 2,000+ pretrained categories identify PII and other regulated data in structured and unstructured sources, in the languages your business runs on (Forrester scored BigID 5 out of 5 on language support). The classified inventory is what privacy and compliance programs work from, including GDPR, CCPA, HIPAA, and PCI DSS, and it feeds privacy and compliance automation directly.
How does data discovery and classification relate to DSPM?
It is the foundation DSPM is built on. Data security posture management (DSPM) depends on knowing what data exists, where it lives, and how sensitive it is. Discovery and classification produces that inventory, and DSPM, access governance, data lifecycle management, and AI governance each work from the same findings.