404 Media Tests Show ChatGPT Ads Can Target Users by Email and Phone Number

An investigation by 404 Media found that OpenAI lets advertisers target ChatGPT users based on conversation content, email, phone number, or device ID. Most of the platform's one billion monthly users are unaware of the practice, raising privacy concerns.

2026-10-18 ~ 2026-10-18 · 2 related posts

• 404 Media buys ads inside ChatGPT criticizing OpenAI's privacy practices, exposing conversation-based targeting — decisionleader · 2026-10-18
• 404 Media: ChatGPT Ads Target You via Phone Number, Email and Prompts — decisionleader · 2026-10-18