Z:gnu-www-ja-digital-inclusion-in-freedom--d9b9a0-Microsoft Windows has features/en

Microsoft Windows has features to spy on the user,22 Digital Restrictions Management (DRM) features designed to stop the user from making full use of his own files,23 and an all-purpose back door with which Microsoft can forcibly change the software in any way at any time.24 Microsoft can alter any software, not just its own.25 Cell phones tied to particular phone networks may give the network a similar back door. MacOS also has DRM features designed to restrict the user.