What are the technical prevention methods for network security?

Network security technology prevention methods include firewalls, intrusion detection and prevention systems, authentication and access control, data encryption, security patches and updates, security auditing and monitoring, threat intelligence and vulnerability management, training and education, network Isolation and segmentation, social engineering prevention, malware prevention, backup and recovery, physical security measures, network traffic monitoring and analysis, security policy and compliance, etc. Detailed introduction: 1. A firewall is a network security device used to monitor and control data traffic in and out of the network, according to set rules and policies, etc.

The operating system for this tutorial: Windows 10 system, DELL G3 computer.

Network security technology prevention means are to protect computer systems, networks and data from unauthorized access, destruction and theft. The following are some common network security technology prevention methods:

1. Firewall:

A firewall is a network security device used to monitor and control data traffic in and out of the network. It can filter and block malicious or unauthorized network traffic based on set rules and policies to protect the network from attacks and intrusions.

2. Intrusion Detection and Prevention System (IDPS):

IDPS is a security tool that monitors network traffic and system activities. It can detect and identify potential intrusions and take appropriate measures to prevent and block attacks. IDPS can be network-based or host-based and are used to monitor and respond to potential threats in real time.

3. Authentication and Access Control:

Authentication and access control are key means to ensure that only authorized users can access systems and data. It includes using passwords, two-factor authentication, biometrics, etc. to verify user identities, and restrict and control user access rights through rights management and access control policies.

4. Data Encryption:

Data encryption is a technology that converts sensitive data into an incomprehensible format to protect the confidentiality and integrity of the data. By using encryption algorithms and keys, data is encrypted during transmission and storage, and only authorized users can decrypt and access the data.

5. Security Patching and Updates:

Security patches and updates are key measures to promptly repair and update operating systems, applications, and network devices. Manufacturers release security patches and updates to fix known vulnerabilities and weaknesses to prevent hackers from exploiting them. Installing and updating patches in a timely manner is an important step in keeping your system secure.

6. Security Auditing and Monitoring:

Security auditing and monitoring is the process of continuous monitoring and evaluation of networks and systems. It includes activities such as logging, event management, anomaly detection and response, and the use of security information and event management systems (SIEM) to collect and analyze security event data, as well as timely discover and respond to potential security threats.

7. Threat Intelligence and Vulnerability Management:

Threat intelligence and vulnerability management is to obtain and analyze information about the latest threats and vulnerabilities, and to take corresponding measures to Mitigate and eliminate risks. It includes subscribing to threat intelligence services, conducting regular vulnerability scans and assessments, and promptly remediating known vulnerabilities.

8. Training and Education:

Training and education are important means to improve the network security awareness and skills of users and employees. By training users on common cyber threats and security best practices, you can help them identify and respond to potential risks, thereby reducing security breaches and human error.

9. Network Segmentation and Isolation:

Network isolation and segmentation is to divide the network into different areas or subnets and use firewalls and access control policies to restrict Network traffic and access rights. This reduces an attacker's ability to move laterally within the network and limits the scope of potential attacks.

10. Social Engineering Prevention:

Social engineering is a method of deceiving and manipulating people's behavior and psychology in order to gain unauthorized access or sensitive information. Information attack techniques. To prevent social engineering attacks, organizations need to conduct employee training to increase employee awareness of potential threats and educate them on how to recognize and respond to social engineering attacks.

11. Malware Prevention:

Malware is a type of malicious code used to access, damage, or steal computer systems and data without authorization. To prevent malware infections, organizations should install and update antivirus software and firewalls, and educate employees to avoid clicking on suspicious links and downloading files from unknown sources.

12. Backup and Recovery:

Regular backup of data is an important measure to prevent data loss and restore the system. By backing up your data regularly and establishing an effective recovery plan, you can reduce data loss and business interruptions caused by data corruption, system crashes, or malicious attacks.

13. Physical Security Measures:

Physical security measures are designed to protect computer equipment, servers and network facilities from unauthorized access and physical damage. This includes the use of measures such as access control systems, video surveillance, security locks and safe cabinets to ensure the security of equipment and facilities.

14. Network Traffic Monitoring and Analysis:

By monitoring and analyzing network traffic, potential security threats can be identified and responded to in a timely manner. By using network traffic monitoring tools and intrusion detection systems, abnormal or suspicious network activities can be detected and appropriate measures can be taken to deal with the threats.

15. Security Policies and Compliance:

Developing and enforcing security policies is an important step in ensuring that the organization complies with relevant regulations and standards. Security policies should include provisions on access control, password policies, data protection, network usage specifications, etc., and regular compliance reviews and assessments should be conducted.

The above are some common network security technology prevention methods. Organizations can choose a suitable combination according to their needs and risk situations to protect the security of their computer systems, networks and data. At the same time, regularly evaluating and updating security measures, working with security experts, and staying aware of the latest threats and vulnerabilities are also keys to staying safe online.

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