Outlook is Microsoft’s new data collection service | Proton

Proton's article argues that the new Outlook for Windows has become a data collection and ad delivery service for Microsoft and its 801 third-party partners. It says European users see a disclosure listing 801 third parties that may process their data for purposes including personalized ads and identifying users through device scanning. The article also reports that, according to Heise Online and XDA, the new Outlook syncing with third-party email accounts can send IMAP and SMTP usernames and passwords to Microsoft servers, with Heise saying the credentials are transmitted in plain text. Microsoft has not issued a public response to these criticisms, according to the article.