1. Security risks in information systems What are the security vulnerabilities and security threats?

The main threats to information system security are:

1. Information leakage: Information is leaked or disclosed to unauthorized entities.

2. Destroying the integrity of information: Losses caused by data additions, deletions, modifications or destruction without authorization.

3. Denial of Service: Stop service and block legitimate access to information or other resources.

4. Unauthorized access: the use of network or computer resources without prior consent.

5. Authorization infringement: The use of authorization to use authority for other illegal purposes is also known as "internal attack".

6. Business flow analysis: Through long-term monitoring of the system, statistical analysis methods are used to study parameters such as communication frequency, communication information flow direction, and changes in the total amount of communication, so as to find valuable information and rules.

7. Eavesdropping: stealing information resources and sensitive information in the system with the help of relevant equipment and technical means. For example, the transmission signal in the communication line is monitored, or the electromagnetic leakage generated by the communication equipment in the process of work is used to intercept useful information.

8. Physical incursion: The intruder bypasses physical control and gains access to the system. For example, bypass control is when an attacker exploits a system's security flaws or security vulnerabilities to gain unauthorized rights or privileges to bypass the defense guards and infiltrate the interior of the system.

9. Malicious**: Computer virus.

Trojans, worms, etc. damage computer systems.

or stealing sensitive data from your computer.

1. Impersonation and fraud: By deceiving the communication system (or user), illegal users pretend to be legitimate users, or users with small privileges pretend to become users with large privileges.

11. Denial: denying that he has ever released news, forging letters from the other party, etc.

12. Replay the attack.

Also known as a replay attack.

A playback attack is a process in which an attacker sends a packet that has been accepted by the target host to deceive the system for illegal purposes. Replay attacks are mainly used in the authentication process to undermine the correctness of authentication.

13. Trap door: It is usually a means of entry that programmers deliberately establish when designing a system. When the program is running, pressing the right key at the right time, or providing the right parameters, can bypass the normal security detection and error tracking checks that the program provides.

14. Disposal: Obtaining sensitive information from discarded disks or printed storage media.

15. Carelessness of personnel: The authorized person leaks the information to the unauthorized person in order to quietly respect various interests or due to carelessness.

Threats to information security come from many sources and can be broadly divided into two categories: natural threats and man-made threats. Natural threats refer to threats from natural disasters, harsh site environments, electromagnetic radiation and electromagnetic interference, and natural aging of network equipment.

Man-made threats include: Man-made attacks refer to attacks on the weaknesses of the system to achieve the purpose of sabotage, deception, and data theft, so that the confidentiality, integrity, reliability, controllability, and availability of network information are harmed, resulting in economic or political losses. Man-made attacks are further divided into accidental accidents and malicious attacks.

Security flaws, all network information systems inevitably have some security flaws.

Software vulnerabilities are easy to intentionally or unintentionally leave some security vulnerabilities in the software of network information systems that are not easy to discover. In addition, there may be vulnerabilities in the security vulnerabilities of the operating system, network software and network services, and password settings.

Structural vulnerabilities generally refer to the hidden dangers of network topology and the security defects of network hardware.

At present, the main threat factors to China's information security include the following aspects:

Cyber attacks: These include hacking, phishing, malware, etc., which can lead to leakage of confidential information, system down, and more.

Data breaches: These include external attacks, internal employee mistakes, etc., which may lead to the leakage of personal privacy, confidential company information, etc.

Mobile device threats: These include lost mobile devices, unauthorized access, and malware, which can lead to data theft or remote control of devices.

Chain security issues: including security vulnerabilities, malware, malicious operations, etc., which will affect the information security of the enterprise itself.

Human factors: Lack of employee awareness, negligence, social engineering, etc., these threats can affect the information security within the enterprise.

Physical security issues: These include device loss, device damage, device theft, and more, which can lead to the leakage of device data.

To sum up, China's information security is facing a variety of threat factors, and enterprises need to take comprehensive measures to protect their information security.

Dear, hello briefly, I am glad to answer for you, what are the methods of information system security risk prevention? 1. Physical environment security: access control measures, regional monitoring, fire prevention, waterproof, lightning protection, anti-static and other measures in the computer room.

2. Identity authentication: two-segment parafactor identity authentication, identity authentication based on digital certificates, identity identification based on physiological characteristics, etc. 3. Access control

Physical access control, network access control (for example, network access control (NAC), application access control, and data access control. 4. Audit: physical level (such as, access control, ** monitoring audit) audit, network audit (such as, network audit system, sniffer), application audit (implemented in the application development process), desktop audit (record of the host's Chinese parts, modification, deletion, configuration and other operations of the system equipment) I hope this service can help you, thank you for your consultation, I wish you all the best!