US prosecutors say a British computer expert has admitted to creating software that harvests bank details. But Marcus Hutchins' own lawyer says he denies six charges of creating and distributing the Kronos malware. The 23-year-old from Ilfracombe, Devon, who helped stall the WannaCry cyber-attack which hit the NHS, was arrested on Wednesday in Las Vegas. He was granted $30,000 (£23,000) bail, but will spend the weekend in prison after not being able to pay on Friday.