关键词: 网络安全, 攻击杀伤链, 大数据, 威胁情报, 信息安全, 网络攻击防御

Abstract: Cyber-attacks are the use of network vulnerabilities and security flaws to attack the hardware, software and data of a cyber system. The earlier a cyber-attack is identified, the less adverse effect it has. The traditional network intrusion detection system (IDS) has some limitations in detecting cyber-attacks, such as passive protection and limited capability of threat identification. Threat intelligence technology provides a more scientific and effective method for identifying potential or actual cyber-attacks by using big data analysis,and provides a comprehensive and relevant cyber-attack defense model.

Key words: cyber security, cyber-attack, big data, threat intelligence, information security, cyber-attack defense