Data should vanish unless you choose to keep it. Lean Privacy By Default means no silent collection, no hidden storage, and no dark patterns. It strips every feature to the minimum personal data needed to work. The result is faster builds, simpler code, and fewer breach risks.
Lean Privacy By Default is more than a compliance checkbox. It’s a design principle baked into architecture and workflow. Collections are intentional. Retention is explicit. Defaults are zero unless a user opts in. Every query, log, and cache is reviewed through this lens.
When privacy rules are lean, developers remove redundant fields from payloads. APIs enforce minimal scope. Databases stop storing unused identifiers. Systems only keep what is actively needed to deliver the value promised. This transforms privacy from a reactive audit task into a living part of the product lifecycle.