Shenrong Liu (@<span data-sheets-value="{"1":2,"2":"cyriliu"}" data-sheets-userformat="{"2":8403841,"3":{"1":0},"10":2,"11":0,"12":0,"14":[null,2,0],"15":"Arial","16":10,"26":400}">cyriliu</span>) is a security researcher at Tencent Zhanlu Lab (@ZhanluLab), mainly focusing on javascript scripting engine's security, such as V8 and spiderMonkey. Recently, they are trying to find the problems of just in time compiling. In the past runtime code and CORS's security were their work objectives.