A hacker has discovered a method for obtaining in-app purchases without having to pay for them. Citing Russian blog i-ekb.ru, 9to5Mac reports that the method was published by a Russian developer, and works on all devices running iOS 3.0 or later, no jailbreak required. According to the report, the hack involves the installation of two certificates and the changing of a DNS record in Wi-Fi settings. The report claims that the hack does not work on…