## 4 Results
### Stage Topic Recognition
#### 4.1.2 Technical Topic Recognition  
1. Stage 1 (2005-2006). This stage coincides with the period of systematic construction of global cybersecurity technology systems, with technological research and development focusing on the exploration of fundamental security architectures and defense mechanisms. Specifically, it included \"Communication Link Security and Authentication Technology\", \"Vulnerability Detection and Security Policy Management\", \"Network Intrusion Detection and Defense System\", and \"Malicious Code and Host Log Analysis\". Furthermore, the widespread adoption of 3G networks and the rise in mobile office demands drove the adaptation of cybersecurity technologies to mobile scenarios. Topics such as \"Network Address Security and Trusted Computing\", \"Mobile Cybersecurity\", \"Content Security and Data Protection\", and \"Web Services and Portable Storage Security\" became research and development hotspots. 2. Stage 2 (2007-2008). In this stage, the exploration of defense mechanisms remained the focus of technological research and development. The emergence of topics such as \"Message Security and File Management\", \"Network Vulnerability Management\", and \"Security Operation\" reflects the trend of defense mechanisms shifting from passive response to proactive defense. Meanwhile, with the gradual popularization of mobile devices, researchers began to pay attention to terminal security, specifically involving \"Mobile Terminal Software and Communication Security\", \"Client Security\", and \"Memory Protection\". Additionally, with the continuous expansion of enterprise networks and the increase in data volume, the demand for technologies such as packet detection (\"Packet Detection\") and communication protocol security (\"Communication Protocol Security\") also grew. 3. Stage 3 (2009-2010). Cybersecurity technologies evolved towards fine-grained approaches during this stage. Building on the previous stage, developers continued to focus on research and development related to terminal security enhancement (\"Terminal Control\", \"Node Security\", \"Terminal Configuration Management\"), dynamic defense against network attacks (\"Application Layer Protocol Security\", \"Malicious Node Identification\", \"Data Packet Detection\"), and deep protection at the data layer (\"Behavioral Pattern Analysis\", \"Database Security\"). 4. Stage 4 (2011-2012). During this stage, with the widespread popularity of mobile devices, security technologies built for such devices once again became a development focus. Specifically, it covered \"Client-Based Virus Detection and File Scanning Technology\" and \"Mobile Applications and Server-Side Malicious Code Protection\". Identity management technologies also evolved from single-password authentication to the paradigm of identity verification (\"Client Authentication\"). Furthermore, the emergence of the two topics of \"Service Interface\" and \"Rule-based Electronic ServiceSecurity Event Response Technology\" marked a new stage in which security operation and maintenance technology moved from manual intervention to automated strategy execution. It also highlighted the urgent need for API security and compliance management in the context of cloud computing. The emergence of advanced persistent threats also drove the development of more sophisticated detection technologies. For example, topics emerged such as \"Cybersecurity Detection Based on Packet Analysis\", \"Malicious Code Detection\", and \"Node Malware Detection\". * Stage 5 (2013-2014). During this stage, cloud computing and Internet technologies became deeply integrated, resulting in cybersecurity technologies exhibiting characteristics of cloud-based service architecture (\"Cybersecurity Service Architecture\", \"Web Service Communication Security\").