Revocable Consent

A consent pattern in which the user can withdraw their previously granted permission at any time, typically through a persistent, discoverable UI control that immediately halts data processing and triggers deletion of data collected under that consent. A stronger form than "check-the-box" consent, aligned with the GDPR's right to erasure (Article 17) and increasingly expected in accessible health and mental-health tools. Accessibility implications: the revoke control should be reachable without relying on memory or navigational complexity, and its effects should be communicated in plain language.