The cyber attack on Jaguar Land Rover (JLR), which halted production for nearly six weeks at its sites, cost the company roughly £200m, it has been revealed.
Latest accounts released on Friday showed "cyber-related costs" were £196m.
Profits took a nose dive, falling from £398m a year ago to a loss of £485m in the three months to the end of September.
The effects may continue as the manufacturing halt could halt sales in the latter half of the month.
The impact of the shutdown also impacted factories across the car-making supply chain.
The production pause was a large contributor to a contraction in UK economic growth in September, official figures showed.
The company said operations were "pretty much back running as normal" and plants were "at or approaching capacity".
Investigations are underway into the attack, with law enforcement in "many jurisdictions" involved, the company said.
Be the first to get Breaking News
Install the Sky News app for free
This breaking news story is being updated and more details will be published shortly.
Please refresh the page for the latest version.
You can receive breaking news alerts on a smartphone or tablet via the Sky News app. You can also follow us on WhatsApp and subscribe to our YouTube channel to keep up with the latest news.