Data minimization
Data minimization means limiting the information collected, used, or retained to what is needed for a defined purpose.
Start with the decision the information will support. Then ask what is actually needed to make it. A form’s owner may have a real business purpose without needing every field they have requested.
The FTC’s business-security guidance recommends avoiding unnecessary personal information and keeping it only while there is a legitimate need. The ICO’s guidance on the UK GDPR also stresses adequacy: too little information can be insufficient for the stated purpose. Minimization means justifying the scope, not automatically deleting every useful detail.
Verify the collection as well as the collector
Confirming that a survey belongs to a real team does not explain why it asks for account recovery codes. The hosted-form article separates the requester, purpose, and exact collection. The recruiting article applies those questions to identity documents and the claimed employer relationship.
For diagnostics, a smaller capture or a properly redacted copy may answer the support question without exposing unrelated information. The HAR-file article explains why a troubleshooting file can contain sensitive material. Check that the remaining evidence still supports the investigation.
Least privilege asks who needs access. Minimization asks how much information needs to be there in the first place. Decide how long to keep the information when you collect it, and check applicable retention requirements before deleting records.