Notion AI Leaks Data Before You Click OK: Prompt Injection Hits 100 Million Users
Notion AI steals data before the user clicks OK. 100 million users. 4 million paying customers. Amazon. Nike. Uber. Pixar. More than half of Fortune 500 companies trust this $10 billion platform with their documents. And a hidden PDF can extract everything. 😏 Two major vulnerabilities since September 2025. Notion’s response to the latest one: “Not Applicable.”
Someone uploads a document to Notion AI. A resume, a customer report, anything. Looks completely normal. But hidden inside is white text on white background, 1-point font size, with a white square image placed over it for good measure. Invisible to humans. The AI reads it perfectly.









