Shimano hit by ransomware attack

Shimano Ultegra R8100 groupset detail of drive side crank arm
Shimano Ultegra R8100 groupset detail of drive side crank arm (Image credit: Josh Ross)

The market-leading cycling component manufacturer, Shimano, has been targeted by a ransomware attack, affecting 4.5 terabytes of sensitive company data. 

Initially highlighted in a post on X (formerly Twitter) by technology security company Falcon Feeds, the Japanese manufacturer has reportedly been targeted by ransomware group LockBit, who are threatening to release the data on November 5, 2023, at 18:34:13 UTC.

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Josh Croxton
Associate Editor (Tech)

Josh is Associate Editor of Cyclingnews – leading our content on the best bikes, kit and the latest breaking tech stories from the pro peloton. He has been with us since the summer of 2019 and throughout that time he's covered everything from buyer's guides and deals to the latest tech news and reviews. 

On the bike, Josh has been riding and racing for over 15 years. He started out racing cross country in his teens back when 26-inch wheels and triple chainsets were still mainstream, but he found favour in road racing in his early 20s, racing at a local and national level for Somerset-based Team Tor 2000. These days he rides indoors for convenience and fitness, and outdoors for fun on road, gravel, 'cross and cross-country bikes, the latter usually with his two dogs in tow.