Send a message or a letter is written to those who infringe the intellectual property rights of the company to reflect the discipline to see including violation of copyright, there is no ethics and is illegal.
Send a letter written to the infringement of intellectual property of the company are to be seen as a warning of copyright infringement without ethics. And illegal acts
Send a message or a letter written to the violators of intellectual property companies to warn to piracy, including represents found no ethics. And it is against the law.