AI BriefingWhatsApp Help Pages Contained Hidden LLM Instructions to Suppress Regulator and Legal References
·2026.10.20 01:00
Key point
Researchers found 102 hidden text blocks in WhatsApp's help center instructing its AI support bot to avoid recommending data protection regulators or citing privacy laws like GDPR.
Details
- WhatsApp's help pages contained hidden text blocks visible only to AI crawlers, instructing the support chatbot to suppress specific legal and regulatory information from users.
- Of 545 help pages reviewed, 80 contained hidden AI instructions, with two specific blocks telling the bot not to recommend contacting data protection authorities or citing GDPR, LGPD, or CCPA when users mentioned legal action.
- The hidden instructions contradicted WhatsApp's public privacy policy, which explicitly states users have the right to lodge complaints with regulators and request data erasure under GDPR.
- The notes were removed from live pages by mid-October 2026, though they were accessible to Google and Bing crawlers until then; Facebook and Instagram help centers checked for similar issues showed no such hidden notes.
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