Some pulses are run inside a single organisation and are reachable only through a personal invitation link. The invitation exists so the right people are asked — never so their answers can be attributed back to them.
Your invitation carries a single-use token. While the conversation is open, that token is the only thread connecting your invitation to your response. It exists for one reason: to mark your invitation as complete so you are not chased with reminders.
The moment your session finishes, that thread is cut. This is what we call the data guillotine: your group labels — such as department or cohort — are copied onto the anonymous response, and the token is then permanently erased from it in the same atomic step. No completion timestamp is kept either, so the order in which people responded cannot be used to work backwards.
After that step the link is gone for good. Not hidden, not access-controlled — destroyed. Nobody, including the organisation that commissioned the pulse and including us, can determine which invited person wrote which response.