I was reading a documentation that suggests blocking the computer from transferring files to an external device, such as a HD, Camera or Pen Drive, allowing only reading.
Is this type of protection still valid? Because today anyone can for example copy something inappropriate (files or data) and paste it on file sharing sites, or upload it to an email with the compressed data.
Or is there any way to block uploading files from predefined directories? Ex.: C:/development doesn't allow the files inside it to be copied to another directory, or it to be uploaded to an external service?
In my opinion, anyone can copy something sensitive or data, and paste it into PasteBin, for example.