Ransomware hunters: the self-taught tech geniuses fighting cybercrime

Hackers are increasingly taking users’ data hostage and demanding huge sums for its release. They have targeted individuals, businesses, vital infrastructure and even hospitals. Authorities have been slow to respond – but there is help out thereAround 9pm on Monday 23 November 2020, the IT manager for a school in central London received a text message from a colleague, saying the school’s website was down. He tried logging on but couldn’t. At first, he thought he had forg