All of it started in February 2021, with a radio advert for Dogecoin, a cryptocurrency promoted by Elon Musk, the creator blockchain tips (blockchaintips.net) of Tesla. Intrigued, Roy began Googling, eventually using his bank card to make a preliminary financial investment of EUR2,500 (₤ 2,200) in a range of cryptocurrencies. The worth of Roy's portfolio climbed to EUR8,000, then EUR100,000, Blockchain...