Illegitimate reviews can hurt business for legitimate sellers, causing brands like Nike to sever ties with Amazon. Here's how to spot fake reviews and Amazon's plan to prevent them.

A review of 3 automated systems in use by the Swiss police and judiciary reveals serious issues. Real-world effects are impossible to assess due to a lack of transparency.

Some companies regret sharing information with the tech giant and its Alexa Fund. “We may have been naive in believing they weren’t competitive with us,” said one executive.

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