InterstellarNet: New Order, Book 2

In Edward M. Lerner's latest installment of the InterstellarNet saga, humanity faces the perils of Second Contact, learning firsthand that interacting with aliens is fraught with unforeseen dangers. After a century and a half of radio communication and shared intellectual property, the boundaries of interstellar distances may not be as secure as once believed. As old fences begin to weaken, both friendly and unfriendly extraterrestrial neighbors may soon breach the barriers, prompting an unexpected and intense interaction with the cosmos.