High-end bicycle wireless shifting systems pose security risks and can be hacked, study says

This website reported on August 15 that a new study revealed that high-end racing bicycles have serious cybersecurity vulnerabilities. Researchers have discovered that wireless shifting systems on bicycles are vulnerable to hacker attacks, which could have major implications for major events including the Tour de France.

1. Research teams from the University of California, San Diego and Northeastern University collaborated on this study.

2. Research points out that although the wireless transmission system of bicycles improves the rider's control, it also introduces new safety risks.
3. These vulnerabilities may be exploited by hackers to give riders an unfair advantage by manipulating gear changes or interfering with gear shifting operations, and may even cause accidents or injuries.
4. The researchers focused on Shimano’s Di2 wireless shifting system, which has the largest market share, which wirelessly connects the rider-controlled shifter with the derailleur responsible for chain shifting.
5. The research team found that by recording and retransmitting instructions, it is possible to launch an attack within a 10-meter range using commercially available equipment.
6. They also confirmed that it is possible to perform a targeted jamming attack on a specific bike, making it unable to shift gears without affecting other bikes around it.
7. Currently, the research team is working with Shimano to patch the vulnerability, and Shimano has also begun to take some of the recommended countermeasures.

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