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Anthropic's Claude AI shares user data with ad networks, study finds

By PulseAugur Editorial · [1 sources] ·

A recent study by the IMDEA Nanoscience Institute found that Anthropic's Claude AI chatbot shares user data with third-party services, including ad networks like Meta, TikTok, and Google. This occurred even when users attempted to reject non-essential cookies or were on paid plans, raising privacy concerns. While Claude was not the worst offender among the nine chatbots analyzed, the study highlights that user IDs, chat IDs, and email addresses were transmitted to services like Datadog and Intercom, and server-side forwarding to ad platforms bypassed ad blockers. AI

IMPACT Raises concerns about data privacy and third-party sharing practices of leading AI chatbots, potentially impacting user trust and regulatory scrutiny.

RANK_REASON Study published by a research institute analyzing AI chatbot privacy practices. [lever_c_demoted from research: ic=1 ai=1.0]

Read on r/ClaudeAI →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Anthropic's Claude AI shares user data with ad networks, study finds

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Study published by a research institute analyzing AI chatbot privacy practices. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. r/ClaudeAI TIER_2 English(EN) · /u/ZoeyPanthera ·

    I trust Anthropic with my data. I didn't agree to share it with Meta, TikTok and Google. (IMDEA study)

    <!-- SC_OFF --><div class="md"><p>A new privacy study from IMDEA Networks (&quot;Prompt like a Butterfly, Sting like a Tracker&quot;, accepted at PoPETs 2027) analyzed the web and mobile versions of nine AI chatbots in May 2026: ChatGPT, Claude, Gemini, Grok, DeepSeek, Perplexity…

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