Shimano's Di2 wireless gear-shifting systems can be hacked, according to research from US universities, but there is already a fix in place for pro teams, and one coming for ordinary users.
As reported in Wired, researchers from UC San Diego and Northeastern University revealed a technique this week that would allow anyone to hack into Di2, using a radio attack. A hacker positioned nine metres away could trigger an attack which would make a bike jump gears or jam the shifters.
