Don’t use Windows 10

Microsoft introduced a lot of new great features in Windows 10 such as Cortana. However, most of them are breaking your privacy:

  1. Data syncing is enabled by default
    • Browsing history and open websites
    • App settings
    • Wifi Hotspot names and passwords
  2. Your device is tagged with a unique advertising ID
    • Used to service you with personalized advertisements by third-party advertisers and ad networks
  3. Cortana can collect your data
    • Keystrokes
    • Searches
    • Microphone input
    • Calendar data
    • Music you listen to
    • Credit Card information
    • Purchases
  4. Microsoft can collect your data
    • Your identity
    • Passwords
    • Demographics
    • Interests
    • Habits
    • Usage data
    • Contacts and relationships
    • Location data
    • Content like emails, instant messages, caller list and audio and video recordings
  5. Your data can be shared
    • When downloading Windows 10, you are authorizing Microsoft to share any of the above mentioned data with any third party, with or without consent.

For example, if you’re using the default settings, each time you start typing in search box in taskbar (to open an application or search for a file on your computer), your local search terms and location are sent to Microsoft, and they use some of that data to personalize advertisements.

Some counter-measures

However, Windows 10 sends your data 5500 times every day, even after tweaking privacy settings, so the best approach probably is using a different operating system.