Among the Skype translation privacy FAQs,MicrosoftExplain what kind of audio content will be collected and how it will be used. "This may include transcription recordings by Microsoft employees and suppliers, but will be subject to procedures designed to protect user privacy, including measures to identify data, confidentiality agreements with suppliers and employees, and suppliers' compliance with high privacy standards. European law and other regulations."
Looks like evenappleRecently, Google has suspended the manual review of voice recording by Siri and Google Assistant due to privacy issues, and Microsoft will not do so now. But a Microsoft spokesperson told the media that the company is clearly considering making further changes. “We have updated our privacy statement and product FAQs to increase greater clarity and continue to investigate further steps we may take.”