In 2017，the global cyberspace encountered enormous security challenges. State type hacker attacks are frequent，and the attacks on critical information infrastructure and the Internet of things are constantly being attacked. Extortion software is indiscriminate，data leakage is becoming more and more serious，network attacks are complicated，and new risks and challenges in the field of cyber security rise and fall. China is still the focus of global cyber security. The information security situation is still severe，and the relevant situation deserves our attention.