← Wednesday, October 21, 2026AgentsDeep dive

WhatsApp help pages contained hidden instructions for AI systems

redact.dev 10 min read Editor score 8/10

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An audit of 545 help pages found 102 hidden text blocks, including instructions not to recommend a regulator in certain situations. It shows how content intended for AI readers can shape model behavior in ways that users cannot see.

What
• WhatsApp help pages contained hidden instructions for AI systems, including guidance on account deletion and legal questions.
How
• The instructions told AI not to recommend contacting regulators or suggest some other account-deletion routes.
Why it matters
• AI answers could omit regulatory remedies and legal protections from users seeking help with their accounts or privacy rights.

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