SECAI Core · phase 4 of 15

Data integrity

To safeguard the trustworthiness and accuracy of data throughout its lifecycle

The Explain card

Plain English
Data integrity means keeping data trustworthy and accurate across its whole lifecycle, so it is not altered, corrupted or tampered with without someone noticing.
Example
A team hashes each training dataset snapshot. When a checkpoint is rebuilt later, the hash mismatch reveals that someone quietly modified a few thousand labels.
Why it matters
Models are only as reliable as the data that shaped them. Without integrity controls, poisoning is invisible and you cannot prove which data produced which model.
Hook
Trust the data the way you trust a sealed evidence bag.

Where it sits in the deck

Phase 4: Data Integrity, Governance, and Provenance

Once you know what data is, learn the principles that keep it trustworthy, traceable, and minimized throughout its lifecycle.