When Guardian Australia senior reporter Sarah Martin heard a friend’s hairdresser had invested in a cryptocurrency scheme called HyperVerse and potentially lost all her money, she decided to investigate. She soon found many more members of the scheme, in Australia and around the world. A person in the UK had lost £1m from the sale of his home that he’d put into HyperVerse; an Australian who had recruited his mates lost $100,000 – and lost his friendships too.