1. What they are
Necessary cookies are required for sign-in, CSRF protection, session handling, baseline security, and core Persona features.
These cookies are always active because Persona cannot safely provide the service without them.
2. What they support
They support authenticated sessions, security tokens, legal confirmation flows, abuse prevention, and technical continuity across requests.
Without them, important parts of Persona such as login, account protection, or message continuity may stop working correctly.
3. Your choice
Because these cookies are strictly necessary for the service, they cannot be turned off in Persona's consent controls.
You may still block them in the browser, but doing so can break access to Persona or reduce security.