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Google, Meta, Microsoft systems fail to honor opt-out signals, audit says

By Maria Dinzeo ( April 14, 2026, 13:27 GMT | Insight) -- Major ad tech providers are continuing to track consumers who have opted out via Global Privacy Control, according to an audit that found widespread failures to block advertising cookies across thousands of popular websites.Digital advertising giants Google, Microsoft and Meta are largely ignoring consumer requests to opt out of tracking, according to an independent audit that found more than 124,000 advertising cookies were set despite users having enabled Global Privacy Control....

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