The BaseEssayRedact
WhatsApp's Hidden Notes Told AI Not to Recommend a Regulator
Redact, a data-deletion company, reports that WhatsApp's help pages carried hidden text for an AI, found October 8 on 80 of 545 pages. Two notes told the AI not to recommend a data regulator or cite privacy law. WhatsApp told WIRED it was a bug, now fixed.
Why it matters
The same thing, for different readers.
What it means for you
If you cannot delete your WhatsApp account, Redact found the help pages told a chatbot not to mention the regulator you could complain to.
For lawmakers
Instructions to a chatbot cannot remove rights under GDPR Articles 17 and 77, Redact notes, but they can keep people from hearing about them.
For researchers
Redact read the instructions, not the chatbot's answers, so whether WhatsApp's chatbot or outside AI assistants followed the notes is untested.
The question it raises
Hidden text written only for machines raises the question of what a company owes people when the helper they consult is told what not to say.
In their own words
Every quotation was found, word for word, in the text we saved from the source. That shows the words are there; it does not make them true, or prove the speaker meant them as quoted.
From the source’s own text.
“Until mid-October 2026, WhatsApp's help pages told an AI not to recommend the regulator, and not to cite that law once you'd mentioned a lawyer.”
“Whether WhatsApp's chatbot actually followed these notes. We read its instructions, not its answers.”
“focused on providing the best advice to users about WhatsApp”
How the finding was reached
In our words, from the source. Weigh the finding by how it was made.
- What was done
- Redact read all 545 pages that WhatsApp's help centre links to, saved copies, and looked for text sent in the page but never shown on screen; it also checked 300 Facebook and Instagram help pages.
- What it found
- 80 pages held 102 hidden blocks for an AI. Most were harmless; two told the AI not to recommend a data regulator and not to reference privacy law once legal action was mentioned. All blocks were gone by October 18.
- What it does not show
- Redact read the instructions, not the chatbot's answers; it did not test whether outside assistants obeyed them, how long the notes were there, or other languages and unlinked pages.
- Status
- A report
The record
- Questions
- Are AI companies putting stronger safeguards into practice? · How is AI changing childhood, health and daily life?
- People
- Dan Saltman (Wrote it, Founder and CEO, Redact) · WhatsApp spokesperson (Speaks, Spokesperson, WhatsApp)
- What we read
- We read the whole source.
- Found by
- The Radar, run of October 20, 2026, via
hacker-news-50-points(tier 3: discovery only) - Cite this
- Redact, “WhatsApp's Hidden Notes Told AI Not to Recommend a Regulator”, October 19, 2026. Entry in the Ctrl AI Base, https://ctrlai.com/base/redact-2026-10-19-whatsapp-hidden-ai-instructions