I want to protect my USB flash drive in general so these files and directories are readable but not copyable so no one can make a copy of these files in my USB flash drive.

Is that possible?

  • 6
    If you can read it you can copy it, period. – Moab Sep 30 '15 at 16:21
  • if a program can read it, it can always store the bytes to another file. there's no way to prevent that – phuclv Sep 30 '15 at 17:05
  • 1
    The act of reading a file is the act of copying it into something. This is why all forms of DRM are fatally flawed. You want to keep data completely safe? Make sure 100% of nobody can read the drive ever. – JakeGould Sep 30 '15 at 17:07

You can control write-access separately from read-access on the files. But once you allow readability, the user is able to copy as well. Copy is implied in read-access.

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