The way that the researchers did this work is, they read the software in the computer chips that were in the car, and then they used sophisticated reverse engineering tools to figure out what that software did, and then they found vulnerabilities in that software, and then they built exploits to exploit those.
研究人员试验的方法就是， 他们读取了车内电脑芯片中的软件 之后他们运用复杂的 反向破解工具 来弄明白了这个软件的功能， 并且找到了软休的漏洞， 之后他们利用这些漏洞建造后门。