The British Foreign Secretary David Cameron has become the victim of an unknown prankster who claimed to be former Ukrainian President Petro Poroshenko, reports The Telegraph. According to the publication, the minister and the prankster initially exchanged several messages. A few days ago, they had a video call. Cameron ended the conversation when he became suspicious because the prankster asked him for contacts of British government members. The British Foreign Ministry stated that they conducted an investigation and determined that the call was indeed a hoax. The ministry did not specify who…