On June 22, Beijing time, Microsoft said on Tuesday that it would stop selling the technology of guessing someone's emotion based on face images, and would no longer provide face recognition technology with unrestricted access. Microsoft's actions show that leading cloud service providers are trying to control sensitive technologies on their own as lawmakers in the United States and Europe continue to weigh comprehensive legal restrictions. Since at least last year, Microsoft has been evaluating whether the emotion recognition system is rooted in science. "These efforts have raised important questions about privacy, the lack of consensus on the definition of 'emotion', and the inability to generalize the link between facial expressions and emotional states across use cases, regions, and demographics." Sarah, Chief Department Product Manager of Microsoft azure AI department? Sarah bird said in a blog post. Microsoft said that existing customers will have a one-year transition period, and then they will not be able to use these AI tools. The tool is said to infer mood, gender, age, smile, facial hair, hair and makeup. Microsoft also said that customers must now obtain approval to use its face recognition service, which allows people to log in to the website or open locked doors through face scanning. Microsoft calls on customers to avoid situations where privacy infringement or technology may encounter difficulties, such as identifying minors, but does not explicitly prohibit these uses. (Xinhua News Agency)