In general, if you want to have an App malicious behavior, we must mention the right inside the system before you can view the "someone else" thing. From the system level, this kind of operation would leave marks. We will use their grasp of vulnerabilities, file integrity can be verified, the process of inspection, the signature check. Such attacks can be identified. Since our analysis is based on signature verification and behavior, it is possible to discover unknown threats. Lei Feng network: Let me say jailbreak it, Pangu core team a few people? How do you division of labor? OGC557: Our core team of six people, TB (South Korea win glory), DM557 (Chen Xiaobo), INT80 (Wang Tielei), windknown (Xu Hao), and I had demigod. Every time there are research division. For example, you just find a flaw in it, I was there a dig holes. Finally, we pieced together, tested together, fit, in order to achieve the final escape. Now we basically do not stay up late, unless there is an important node, for example, soon to be released jailbreak. Lei Feng network (search for "Lei Feng net" number of public concern): Talk about your impressive jailbreak story. OGC557: This time last year, we have attached a boil two weeks of the night, just to release iOS 8.4 jailbreak, we saw from the last release With only two days, the first Tai Chi team released their jailbreak tool. The same version of iOS, if there are two teams simultaneously released jailbreak tool is a waste of vulnerabilities, so this means we rush week tools can not be released. That we really depressed. But we can not rest, you need to immediately make their jailbreak tool technology to track, to see if there hit the holes (own and use the same vulnerability). Fortunately, that did not hit a hole, we can still use the weapons in the next version. Lei Feng network: How many loopholes in your hand? OGC557: Our reserve is very rich. If Apple plugging loopholes now, we can still escape with another set of vulnerabilities. Our hands have at least two sets of holes.