The ProtonMail people are accusing Microsoft’s new Outlook for Windows app of conducting extensive surveillance on its users. It shares data with advertisers, a lot of data:
The window informs users that Microsoft and those 801 third parties use their data for a number of purposes, including to:
- Store and/or access information on the user’s device
 - Develop and improve products
 - Personalize ads and content
 - Measure ads and content
 - Derive audience insights
 - Obtain precise geolocation data
 - Identify users through device scanning
 
