When will Jaguar Land Rover restart production? "No one actually knows."

"Jaguar Land Rover's dealers and suppliers fear the British carmaker's operations will take another few months to normalize after a cyber attack that experts estimate could wipe more than £3.5 billion off its revenue. JLR, which is owned by India's Tata Motors, had been forced to shut down its systems and halt production across its UK factories since August 31, wreaking havoc across the country's vast supply chain involving roughly 200,000 workers."

"The cyber attack comes at a crucial period for the UK carmaker when it is going through a controversial rebranding of its Jaguar brand and an expensive shift to all-electric vehicles by the end of the decade. Even before the latest incident, people briefed on the matter have said the company was facing delays with launching its new electric models."

"If JLR cannot produce vehicles until November, David Bailey, professor at University of Birmingham, estimated that the group would suffer a revenue hit of more than £3.5 billion while it would lose about £250 million in profits, or about £72 million in revenue and £5 million in profits on a daily basis."

Jaguar Land Rover shut down systems and halted production across UK factories from August 31 after a cyber attack, affecting roughly 200,000 workers across its supply chain. The company extended the production halt and warned that a controlled global restart will take time. Experts estimate that continued production loss until November could cut more than £3.5 billion in revenue and cost about £250 million in profits overall, with daily losses around £72 million revenue and £5 million profits. Annual revenues may absorb the hit, but smaller suppliers face greater risk. The attack coincides with a Jaguar rebrand and a shift to all-electric vehicles, amid existing model launch delays.

Read at Ars Technica