Data that isn’t held can’t leak, be sold or be misused. Members collect what it takes to serve their customers, say how long they keep it, and delete it on schedule.
Most data problems start with data nobody needed any more.
Every member publishes one. It shows what they keep, why, for how long, and what happens after. This is an example layout.
Minimisation is a signed pledge, and the retention schedule is published on every member’s record. At review we read the schedule and every form a customer fills in. When a concern is reported, we ask for evidence that deletion actually runs, such as an automated job, a log or a test account that has disappeared on time.