Exposure to trade secrets is the most important standard problem with derivatives. Access to even extremely detailed and informative documentation doesn't necessarily convey infringement certain IP, but it is not the most popular pastime of a litigation lawyer to create strategies for layman's comprehensions of differences between novel creation non obvious to the skilled in the art and generically intelligible deductions reasonable to expect no protection from laws even if both parties went to enormous expense to negotiate and conclude the terms of access and application of the descriptions essential to contested ip.