Who has the story of social engineering invasion?

Part III: Social Engineering -Retrospect Technology What is Retrospect Technology? That is, anti-detection technology. In hacker attacks, the most important part is not to successfully invade the host, but to remove traces and prevent managers from discovering that data has been invaded and forged. Similarly, social engineering also has such a concept. So, what traces should we remove to avoid the discovery of network monitoring (hereinafter referred to as network police)? This part looks at the problem from the perspective of network police, to see how they came and whether they can find clues of social engineers. Or a joke: they are not so easy to find traces. Here we use a case to illustrate. Please note that this is a virtual case. Please correct me. location