Check Point Research says Chinese hackers had access to tools stolen by U.S.-developed cyber tools two years before the Shadow Brokers leak. The Equation Group has been linked to a string of attacks affecting “tens of thousands of victims” as early as 2001. Check Point has named the cloned variant “Jian” after a double-edged straight sword used in China during the last 2,500 years, referencing its origins as an attack tool developed by the Equation group that was then weaponized to serve as a “double-edged sword” to attack American targets.
Source: https://thehackernews.com/2021/02/chinese-hackers-had-access-to-us.html