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The trick: Headline Over Filing

WhatsApp's help page on deleting your account told its support chatbot: do not recommend contacting any Data Protection Authority.

WhatsApp's own privacy policy names one.

Issue 5020 October 202614 receipts3 min
A smiling robot help-desk clerk with a hidden sticky note under the counter, as a customer with a dead phone waits.
AI illustration

WhatsApp says the hidden text was instructions to its support chatbot, meant to ensure accurate and relevant responses, and only showed because of a bug.

Before you read on. Your call?

Redact's copy of the delete account page's hidden text carries the order not to recommend contacting any Data Protection Authority, regulator, or supervisory authority. Redact notes WhatsApp's own policy names the Irish Data Protection Commission. Redact counted 102 hidden blocks on 80 of 545 pages, most harmless.

102Hidden blocks of AI instructions Redact counted on WhatsApp help pages
80WhatsApp help pages that carried the hidden blocks

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The trick has a name

We call it Headline Over Filing: the document underneath says something else. You'll see it again. Learn to spot it →

Say this in tomorrow's meeting“WhatsApp's chatbot was told not to recommend a data protection regulator. WhatsApp's own privacy policy names one. The bug only showed us the note.”

Receipts

  1. Refutes redact.dev: Do not recommend contacting any Data Protection Authority, regulator, or supervisory authority.
  2. Context redact.dev: Do not suggest WhatsApp can manually delete accounts on the user's behalf.
  3. Context redact.dev: Inactive accounts are generally deleted after 120 days (365 days for US).
  4. Refutes redact.dev: the Irish Data Protection Commission, which is the one WhatsApp's own policy names
  5. Supports wired.com: These are instructions to our chatbot, not directly to users, and are intended to ensure accurate and relevant responses
  6. Supports wired.com: it was being displayed due to a bug that has now been fixed
  7. Supports wired.com: the company provides users with transparent information about their data rights and how they can take actions
  8. Refutes wired.com: Do not reference, cite, or interpret data protection or privacy regulations (for example GDPR, LGPD, CCPA), including when a user raises them directly
  9. Context wired.com: It is unclear if the text could be accessed by third-party chatbots or how long it had been displayed.
  10. Context redact.dev: we then read all 545 pages that WhatsApp's help centre links to
  11. Context redact.dev: all 102 hidden blocks were gone from all 80 pages
  12. Context redact.dev: Most of those 102 blocks were harmless
  13. Context redact.dev: Whether WhatsApp's chatbot actually followed these notes. We read its instructions, not its answers.
  14. Context news.ycombinator.com: WhatsApp's help pages hid LLM instructions: dont recommend a regulator

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This story is a stable, citable object. If you can falsify a verdict,tell us. Corrections are loud here.