Recently, the epidemic situation in Qingdao has been somewhat severe, affecting not only Laixi but also Chengyang, and most importantly, it seems that even Licang, one of the three central districts, has reported cases, which is quite alarming.

However, after all, we are now in the third year of dealing with this, so it's not too bad. I remember back in 2019, there was a case in our neighborhood, and the entire area was sealed off, but for someone like me who rarely goes out, the impact was minimal.

What I mainly want to say is that Qingdao has now started comprehensive testing. Without a nucleic acid test, you can't go anywhere, so today, I went out to get tested, which took up quite a bit of time. Plus, I didn't have any drafts saved. Therefore, I'll update later on. Just refresh this chapter a bit later to see the correct content, probably around 1 or 2 a.m.

1 Network Information Security Feature Analysis

1.1 Information Integrity

Information integrity refers to the ability to ensure the completeness of information during the transmission process over the network. Only by ensuring the integrity of information can one further reflect the value of the transmitted information and maximize the function and role of network information transmission.

1.2 Information Confidentiality

Information confidentiality is a core element in network information security control. During the transmission of information, to ensure the confidentiality of the transmitted information, it is necessary to protect user information to prevent unauthorized or illegal users from accessing the relevant information.

1.3 Information Availability

Information availability means that the recipient is able to effectively recognize and receive the transmitted information, and that the information can fully embody the content it intends to convey. As a unique characteristic of computer networks, information availability signifies that related user information has not experienced loss, tampering, or other issues. Moreover, if user account information is lost, the feature of information availability can be utilized to retrieve relevant information.

2 Analysis of Computer Network Information Security Issues

Observing the current stage of people's application of network information, its security issues manifest as: (1) Network information tampering. During the transmission of network information, invaders intercept information based on their mastery of information formats and patterns, modify it, and eventually send the altered network information to its destination. At the same time, due to the openness, freedom, and unevenness of internet technology, invaders can gain access to the sender's information while capturing it, leading to the information receiver's inability to verify the authenticity of the information based on the sender's characteristics, preventing the network information's value from being realized. (2) Network information theft and destruction. With the prevalence of internet technology and the vast daily increase in network information volume, some unprotected, unencrypted information becomes the target of lawbreakers. When invaders intercept relevant network information, they analyze its patterns and layouts based on information characteristics and crack the information to obtain corresponding benefits. In addition, the phenomena of information loss and destruction also occur frequently. Computer systems' operations are disrupted and invaded by certain factors, leading to a significant loss and destruction of network information.

3 Factors contributing to Network Information Security Issues

3.1 Hacker Attacks

The emergence of hackers has disrupted the originally balanced world of network information. Some hackers aim to profit by invading target computer systems, obtaining high-value information through destruction and invasion to gain benefits, or by damaging systems to destroy information, increasing the financial loss for those invaded.

3.2 Virus Intrusion

Network information involves multiple links from its creation to utilization, and virus software can invade computer systems at different stages to achieve objectives such as information acquisition and destruction. Typically, a virus does not exceed 100 bytes in size, with common types including system viruses, wrapper viruses, invasive viruses, and source code viruses. During computer operations, viruses rely on media like floppy disks and terminals to invade and control computer systems, affecting the stable operation of computer systems, which could result in network information loss or tampering. Some viruses even carry mechanisms for self-replication, invading and proliferating to the point of paralyzing computers. Most virus programs are characterized by stealth and contagion. Once a computer system contains an environment conducive to viruses, it can lead to widespread infection and destruction by virus programs, affecting the secure use of network information. And as of now, the number of known virus programs has exceeded 14,000. As they continue to evolve and mutate, the quantity of virus programs is bound to increase, urgently requiring the adoption of scientific methods to effectively control them.

4 Analysis of the Current State of Computer Network Information Security Management

4.1 Incomplete Network Management System

At the current stage, network information security issues frequently arise, in addition to hacker and virus attacks, which are directly related to the imperfection of the current network management system. The Internet is akin to a large-scale free trade market where the transmission and interaction of relevant information only require a corresponding material basis. Although this openness and freedom provide many conveniences, it's difficult to fully prevent issues in user identification and access control. Moreover, due to the network management systems still needing improvement, network information security issues occur frequently.

4.2 Shortage of Top-tier Computer Talent

In our country, computer technology development has been on a continuous upward trend with innovative changes. To further promote the sustained development in our country's computer domain, an abundance of talent is essential. Especially in the era of the knowledge economy, high-end talent has become the fundamental requirement for the development of enterprises and industrial domains. However, looking at the current stage of computer domain development in our country, there's a noticeable shortage of high-end talent. Although there are many individuals working in the computer industry, there is a scarcity of composite, integrated top-tier talent, causing a lack of strong support for the development of our country's computer domain. At the same time, the irrational talent cultivation mechanism is a key factor affecting the development of high-end talent. Due to the unreasonable training forms and mechanisms, computer talent is unable to acquire knowledge, capabilities, and skill enhancement, further affecting the development of our country's computer domain.

5 Computer Applications in Network Information Security Technology Management

5.1 Identity Verification Technology

To further enhance the control effect of network information security, the application and development of identity verification technology must be emphasized. In the process of network information transmission, identity verification technology can accurately identify and authenticate user identity information. By verifying users' usage and access rights, it prevents network information loss or tampering caused by illegal system access, creating a more secure and stable environment for computer system operations. Meanwhile, the application of identity verification technology allows for the one-by-one comparison and verification of relevant parameters during operation. By constructing a trust verification mechanism between users and computers, the security of network information is further enhanced. Additionally, the application of identity verification technology primarily takes a "one-to-one" form, thus effectively preventing virus intrusions and hacker attacks during the transmission of network information. With increased research efforts in our country on identity verification recognition technology, various types of identity verification technologies have been developed, including secret key validation, trusted objects, and biometric features. Different verification technologies serve different purposes; therefore, users can choose the identity verification technology that best fits their needs and the characteristics of network information transmission to avoid issues like information loss or tampering.

5.2 Intrusion Detection Technology

The application of intrusion detection technology in network information security management can further enhance its security management level and effectively prevent issues like information leakage and loss. The application of this technology mainly consists of three steps: information collection, information analysis, and result processing. That is, during operation, comprehensive collection of security logs, system operation information, and other data is carried out, relying on information analysis to determine if intrusion behavior exists, and finally issuing related control instructions based on analysis results. Therefore, to further enhance the level of network information security, users can reasonably apply intrusion detection technology according to their own needs, ensuring first-time detection of unauthorized access and abnormal behaviors, and taking scientific measures to strengthen responses. The commonly used intrusion detection technologies at this stage include misuse detection and anomaly detection models. With regards to misuse detection models, precise analysis of attack types can be conducted during operation, along with detailed reporting, characterized by a low rate of false positives and a high rate of false negatives; for anomaly detection models, the detection objects during operation do not include all intrusion objects, resulting in a low rate of false negatives and a high rate of false positives.

5.3 Firewall Technology

As one of the common techniques employed in the management of network information security at this stage, Firewall Technology plays a vital role in information security protection. During the operation of computers, the configuration of firewalls can effectively avoid potential security risks within the network. When facing access from external network users, firewalls can act as barriers, isolating external security risks and creating a safe environment for the operation of computer systems, effectively preventing the occurrence of network information leakage. Analyzing the application principle of Firewall Technology, it is mainly about adopting State Monitoring and Proxy Service during computer operation to enhance security control, increasing the Information Security Level based on the computer's operational needs, setting internal information to a locked Status, and opening internal information as per user requirements. This approach aims to enhance the level of network information security management while avoiding interference from viruses and hackers with the computer system's operation.

5.4 Antivirus Techniques

As a key factor affecting the security of network information, the reinforcement of antivirus techniques helps to improve the level of security management of network information and ensures that computers are not affected by viruses during their operation. Currently, there is a multitude of antivirus technique Types in our country, and users can, according to their security management needs, choose different antivirus technology systems to enhance the antivirus capabilities of their computer systems. For example, they can select different virus inspection programs based on their needs to detect virus programs and virus files and address virus issues in real-time. Alternatively, they can use various antivirus software for comprehensive system-wide scans to determine if there are virus files or programs inside the system and eliminate them promptly to enhance network information security. Additionally, users can set up a virus protection system to strengthen their computers' ability to guard against viruses, such as automatic alerts from antivirus software when a virus invasion occurs, allowing users to grasp the situation immediately and avoid the loss or damage of computer network information due to virus invasion.

6 Optimization Measures for Network Information Security Management

6.1 Emphasizing on Enhancing the Development of Information Security Technology

Intensifying the research on Information Security Technology can not only improve the level of network information security management but also promote the sustained development of China's computer field. Therefore, relevant Government Departments should increase efforts in R&D and research on Information Security Technology. Based on an analysis of the current status of information security management, they should start with identity certification, Encryption Technology, and network monitoring to develop and innovate technologies. To facilitate comprehensive advancement in security technology research, sufficient financial backing is essential, with the establishment of special funds for the R&D and upgrading of security technology. Moreover, it is possible to fully draw on advanced foreign technological concepts and on this basis, enhance and upgrade existing network information security technologies to lay a solid foundation for the improvement of the level of network information security management.

6.2 Placing Importance on the Development and Improvement of Computer Talent Teams

To address the current shortage of top-tier talents, relevant departments should give priority to attracting and cultivating advanced computer personnel. They could actively collaborate with local universities to offer specializations in network information security, thus expanding channels for bringing in top-tier computer talent. By improving the salary and benefits of computer professionals, they can fully mobilize the intrinsic motivation of computer personnel and attract more high-quality, multi-skilled talents to join the network information security management team. Furthermore, it's crucial to focus on optimizing the talent training mechanism. Based on analyzing the basic skills of Computer personnel, tailored training programs should be conducted to enhance their comprehensive quality and abilities in professional competence, theoretical knowledge, and specialized skills, thereby providing strong talent support for the development of the Network Information Security Domain. Lastly, it is important to implement reward and incentive systems to correct staff attitudes through rewards, assist them in developing a sense of responsibility, and thereby devote themselves wholeheartedly to network information security management work.

6.3 Attaching Importance to the Improvement of Security Management Systems

In response to the issue of incomplete security management systems at the current stage, relevant departments need to adopt scientific methods to improve their security management systems based on the current analysis, thus providing safeguards for the management of network information security. Firstly, Government Departments could build an integrated security control model by combining an analysis of the current status of network information security, along with the comprehensive implementation of the security management system, to create a secure and harmonious environment for the operation of computer systems. Next, they should actively seek support from Government Departments

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