Mitigation
1) You have to be NOT using USB storage mode to copy books. Why would 'pirates' risk sending their books via Amazon. Surely Amazon monitors everything sent to a kindle.
2) You probably have to be getting 'pirated' books
Does this work on any Kindle reader?
There are three different kinds:
1) eInk type Kindle
2) Kindle Fire, a Tablet
3) Kindle reader app for Windows, Mac OS, iOS, Android etc.