Qidan He (a.k.a Edward Flanker) is a security researcher focusing on mobile security at KeenLab of Tencent (former known as Keen Team). His major experience includes mobile security and program analysis. He has reported several vulnerabilities in Android system core components, which were confirmed and credited in multiple advisories. He has also reported vulnerabilities in famous apps and SDKs and ROMs used by millions, including those of Twitter, Slack, Shopify, Alibaba and Huawei and many more. Besides, he is a CTF enthusiast of Blue-lotus and participated in DEF CON 21 Final at Las Vegas.