Market & Regulation
WhatsApp Chatbot System Prompts Leaked in Help Pages
WIRED AIhigh confidence
Why it matters
- →Exposes internal LLM guardrails used in enterprise customer support.
- →Highlights security risks of embedding system prompts in public web code.
- →Demonstrates how companies constrain AI behavior to mitigate legal liability.
Meta has removed hidden system instructions from its WhatsApp help pages after a security analysis revealed they were publicly accessible. The leaked code blocks contained specific directives for an internal large language model, including strict prohibitions against providing legal advice or citing privacy regulations like GDPR. Redact, the privacy firm that identified the vulnerability, noted that these prompts illustrate the gap between user-facing responses and backend AI logic. Meta attributed the exposure to a bug and confirmed the instructions have been removed from all affected pages.
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