PrivacyLobstersabout 2 hours ago
OpenAI Ad Pixel Tracks Users Across Websites
5 min read
OpenAI's ad collector sets a __obi cookie on.openai.com that is sent to OpenAI from advertiser sites, linking browsing activity to ChatGPT accounts. The cookie is SameSite=None, lasts one year, and was observed across 936 advertiser pixels.
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