Product specs often mention supporting privacy by default as a responsible practice, but it's more of an aspiration without clear specifics.
Vague statements on privacy can lead to teams guessing, resulting in overengineering or missing crucial requirements.
To make privacy by default actionable, specific rules should be established, behaviors defined, constraints outlined, prohibitions listed, and testability ensured.
Ambiguity around privacy requirements can cause issues downstream with engineering, legal, QA, and end users, making clear and verifiable requirements essential.