M illions of Britons are “prepping” for a potential “major disruptive event” by keeping a stash of cash at home, stockpiling tinned goods or ensuring they have a battery-powered torch close to hand, new data suggests. With war raging in the Middle East and Ukraine , extreme weather becoming more frequent, and warnings that the UK’s critical infrastructure is at risk from cyber-attacks and power outages, many people feel the world has become a more dangerous and chaotic place. While some are taking steps to make sure they are not left high and dry in the event of a bank IT failure, others are preparing for a possible natural disaster, or even a societal collapse . UK experts recently advised people to have an emergency store of food in their home in case something happens that causes shortages.…