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On April 3, 2026, AI search engine Perplexity was hit with a class-action lawsuit filed by anonymous users, accusing it of having an ineffective 'incognito mode' that constitutes a serious privacy violation. The lawsuit claims that regardless of whether users are logged in or have privacy protections enabled, their conversation content is fully shared with Google and Meta for ad targeting. Investigations revealed that the Perplexity platform embeds multiple trackers to capture users' initial queries and subsequent interactions, resulting in the leakage of a significant amount of sensitive data. Furthermore, Perplexity failed to clearly inform users about data sharing practices and did not provide a link to its privacy policy on its homepage, making the covert data transmission practices difficult for users to detect.
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