By James PearsonLONDON (Reuters) -The August hack of Jaguar Land Rover (JLR), owned by India’s Tata Motors, cost the British economy 1.9 billion pounds ($2.55 billion) and affected over 5,000 organisations in the country, an independent cybersecurity body said in a report published on Wednesday. JLR started to resume manufacturing earlier this month after an almost six-week shutdown caused by the hack. The incident was one of a string of high profile hacks to affect major British companies this year. Retailer Marks & Spencer lost about 300 million pounds (about $400 million) after a breach in April shut down its online services for two months. The CMC’s estimate “reflects the substantial disruption to JLR’s manufacturing, to its multi-tier manufacturing supply chain, and to downstream organisations including dealerships,” the report said.