# What is Data Discovery?

> Data discovery is the process of locating data across defined systems and describing enough of it to support security, privacy, governance, or operational decisions.

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- Language: en
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## Content

It can identify repositories, files, database fields, records, owners, formats, lineage, access conditions, and likely sensitive content, producing an evidence-based inventory rather than assuming that documented stores are complete.

Discovery may examine metadata, configuration interfaces, catalogs, content samples, or full content, depending on authority and risk. Results should record scope, time, method, confidence, and ownership so that teams can validate findings and act on them responsibly.

### Key points

- **Scope and inventory:** Search approved endpoints, databases, object stores, collaboration services, applications, backups, and other repositories; include unknown or unmanaged stores where the discovery mandate permits.
- **Characterization:** Collect useful context such as data type, location, volume, owner, age, permissions, movement, duplication, sensitivity indicators, and applicable retention or residency requirements.
- **Operational use:** Feed validated findings into classification, governance, access review, exposure reduction, retention, data loss prevention, and incident investigation instead of treating discovery output as an end state.
- **Important limitation:** Discovery is a time-bounded observation, not proof of complete coverage or correct classification. Encryption, unsupported formats, inaccessible systems, sampling, stale inventories, and ambiguous content can produce omissions or false matches.

### Related terms

[Data classification](<https://yellowcube.eu/glossary/data-classification/>) · [Data security posture management (DSPM)](<https://yellowcube.eu/glossary/data-security-posture-management/>) · [Data governance](<https://yellowcube.eu/glossary/data-governance/>) · [Data loss prevention (DLP)](<https://yellowcube.eu/glossary/data-loss-prevention/>) · [Data security](<https://yellowcube.eu/glossary/data-security/>)

### Sources

[NIST SP 1800-39 Initial Public Draft: Data Classification Practices](https://csrc.nist.gov/pubs/sp/1800/39/ipd) · [NIST Data Classification Practices: Facilitating Data-Centric Security Management](https://csrc.nist.gov/pubs/pd/2021/07/22/data-classification-practices-datacentric-security/final) · [NIST Cybersecurity Framework 2.0](https://csrc.nist.gov/pubs/cswp/29/the-nist-cybersecurity-framework-csf-20/final)

## Attribution and scope

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