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Japan’s Bridgestone Reports Ransomware Attack on US Unit

The company said third-party unauthorised access was made at Bridgestone Americas on February 27, prompting a shutdown of its computer network

Bridgestone tyre
China is relatively lacking in motorsport culture, but F1 has extended its contract with the Grand Prix until 2025 and there has long been talk of a second race in the country. Photo: Reuters.


Japanese tyre manufacturer Bridgestone on Friday said its US subsidiary has suffered a ransomware attack, just weeks after suppliers of automaker Toyota Motor reported similar attacks.

The company in a statement said third-party unauthorised access was made at Bridgestone Americas on February 27, prompting it to shut down its computer network.

Bridgestone said it later reconnected the network after a comprehensive security check. An investigation later determined the incident to be a ransomware attack.

The announcement comes about two weeks after Toyota’s main supplier, Denso, detected unauthorised access via a ransomware attack at a group company that handles sales and engineering in Germany.

Another Toyota supplier was hit by a cyberattack late last month, prompting Japan’s largest automaker to shut down domestic production for one day on March 1, affecting output of about 13,000 vehicles.

On Monday, Bridgestone suspended Russian local manufacturing and exports to Russia in the wake of Moscow’s invasion of Ukraine.

The company said it suspended its passenger car tyre plant operation and froze all new capital investment.


  • George Russell, with Reuters




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George Russell

George Russell is a freelance writer and editor based in Hong Kong who has lived in Asia since 1996. His work has been published in the Financial Times, The Wall Street Journal, Bloomberg, New York Post, Variety, Forbes and the South China Morning Post.


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