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ChatGPT now knows what you do on other websites via ad collector

Written and edited by the WorldPing NewsdeskPublished Updated Original reporting: Hacker News

What happened

Article URL: https://www.buchodi.com/chatgpt-now-knows-what-you-do-on-other-websites-via-ad-collector/ Comments URL: https://news.ycombinator.com/item?id=49776729 Points: 425 # Comments: 228…

Key facts

  • Article URL: https://www.buchodi.com/chatgpt-now-knows-what-you-do-on-other-websites-via-ad-collector/ Comments URL: https://news.ycombinator.com/item?id=49776729 Points: 425 # Comments: 228…
  • Reported by Hacker News and published Sun, 20 Sep 2026 15:18:44 UTC.

Why it matters

Platform, chip and AI decisions set the terms other companies have to build on, so a single announcement here tends to ripple through products, supply chains and regulation.

What to watch next

  • Availability, pricing and rollout regions
  • Independent testing or verification of the claims made
  • Responses from regulators and competing platforms

Coverage timeline

When each newsroom published on this story, oldest first — all times UTC.

  1. What ChatGPT Thinks It Knows About You Is Affecting Its Answers. Here’s How to Change That

  2. ChatGPT now knows what you do on other websites via ad collector

  3. How to use ChatGPT to make stickers for iMessage and WhatsApp

Sources

The original report was published by Hacker News. WorldPing does not claim that reporting — this page summarises and contextualises it.

Read the full report at Hacker News

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