Shadow Data
Personal data that exists outside the organisation's documented inventory and governance programme — in forgotten stores, exports, snapshots or shadow applications.
Full Definition
Shadow data is the operational twin of shadow IT: data assets the Fiduciary holds but has not catalogued. Typical sources include analyst exports to local notebooks, pre-production copies of production data left behind, snapshot backups of migrated systems, SaaS tenants spun up outside procurement, and departed-employee cloud storage. Each shadow data store is in scope of GDPR, DPDP, PDPA and any applicable sector law — the Fiduciary has the same duties over data it has forgotten about as over governed data.
DSPM is the primary tooling response: continuous discovery across the cloud estate surfaces shadow data stores for triage. The organisational response pairs tooling with discipline: ingest-time classification, mandatory data-owner metadata, standing policy against local copies of production data, and periodic audits that reconcile actual data stores against the inventory. A RoPA that reflects reality (not just governed systems) is the strongest signal to a regulator that shadow data is under active management.
Related terms
Ghost Data
Personal data that remains in an organisation's systems after its legitimate purpose has ended and the organisation has forgotten it exists.
Data Sprawl
The uncontrolled growth of personal and sensitive data across an organisation's systems, often beyond its known inventory.
Shadow IT
Applications, services or systems used within an organisation without the knowledge or approval of its IT and security functions.
Relevant regulations
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