A day to day approach to ensuring the security of the operating system

With the popularization of computers, computer operating systems are also increasingly affecting people's lives and work. However, with the continuous development of computer technology and the popularization of the Internet, computer systems are also facing more and more security threats. For users, ensuring the security of the computer operating system has become an important task.

The following will introduce how to ensure the safety of computer operation.

1. Install genuine software.

First of all, installing genuine software is an important measure to ensure the security of your computer. Non-genuine software is often tampered with or accompanied by malware such as Trojan viruses, which can easily allow hackers to penetrate the computer system through vulnerabilities and manipulate user information. Because genuine software has the guarantee of an authoritative organization, it can ensure the security of the software, and can also be upgraded and patched in time to provide users with a more complete guarantee.

2. Use antivirus software.

Secondly, it is also very crucial to use antivirus software. Antivirus software can monitor and protect the computer's operating system in real time. It scans your system for viruses and malware, and quarantines and removes them.

At the same time, antivirus software can also detect computer system vulnerabilities and security threats, and provide timely warnings and fixes.

3. Encrypt data.

Encrypting data is also a way to keep your computer's operating system secure. For sensitive data stored in the computer system, such as personal privacy information, bank accounts, mobile phone text messages, etc., it can be encrypted to prevent others from prying eyes and theft. Currently, there is a lot of encryption software on the market that users can install and use selectively.

4. Back up data regularly.

Finally, backing up your data regularly is also an important measure to maintain the security of your computer's operating system. Although the risk of keeping your computer safe through various measures is becoming less and less, system failures, virus infections, hard drive damage, etc., can still lead to data loss. Therefore, users need to make regular backups in case of irretrievable loss of data.

Backup data can be stored on other physical media, such as cloud disks or external hard drives.

To sum up, ensuring the security of a computer's operating system requires multiple measures. In addition to the above measures, users should also avoid clicking on unspecified links and attachments, setting strong passwords, and installing system updates in a timely manner. Only in this way can the computer operating system run healthily and worry-free.

a. Authentication

b. Authorization

c. Data confidentiality, data integrity, data nonrepudiationAnswer: ABCDE

Answer]: Cave hunger c

According to the characteristics of computerized accounting, all kinds of operators must strictly abide by the operation and bending procedures of the computer, and also follow the requirements of the accounting system and accounting standards. Therefore, C.