Driven by the huge temptation of economic interests, hacker groups have continued to expand their attacks during the pandemic. According to Check Point’s latest Cyber Security Report, the number of cyberattacks hitting enterprises each week in 2021 increased by more than 50% compared with 2020. Information security challenges faced by enterprises today can be roughly divided into three categories: first is someone specifically targeting an enterprise or organization; the second is the change of access mode brought about by remote and mobile office work models, which expands the scope of malicious program attack; finally, a large number of not-for-profit hacking incidents, such as collecting the personal information of political figures, has paralyzing critical infrastructure.