Data minimisation: verifying more by collecting less
It can be tempting to collect everything that might be useful. In verification, that instinct creates risk without improving answers. Data minimisation means gathering only what the specific question requires.
In practice
Identity checks can compare information without displaying it, for example confirming a date of birth matches rather than showing it to staff. Reports can state a conclusion and the evidence behind it without reproducing every raw record.
Sensitive identifiers that are not needed, such as full Social Security numbers, should not be requested at all.
Retention with an end date
Case data should be kept for as long as the client's documented retention policy and legal obligations require, then deleted or de-identified on a schedule, with a record that it happened.
Why it pays off
Less data means a smaller impact if something goes wrong, simpler responses to privacy requests and more trust from the people being verified.
Consent-first, reproducible verification for your team.
