Three tricks and two tricks to cleverly prevent computers from being maliciously attacked

Source: CCID

After 1990s, human society entered the network age, and information sharing became the most basic feature of the network age. Information security is mainly embodied in network-oriented information security. So what protection should we do for our computer? Below I will introduce several simple and effective setting methods:
1. disable unnecessary ports

Hackers often scan your computer ports during intrusion. If a port monitoring program is installed, a warning (such as Netwatch) is reported ). In the event of such intrusion, tools and software can be used to close ports that are not available, for example, using "Norton Internet Security" to close ports 80 and 443 used to provide web services, other ports that are not commonly used can also be disabled.

2. Change the Administrator account

The Administrator account has the highest system permissions. Once the account is used, the consequences are unimaginable. One of the common means of hacker intrusion is to try to obtain the password of the Administrator account, so we need to reconfigure the Administrator account.

First, set a powerful and complex password for the Administrator account. Then, rename the Administrator account and create an Administrator account without Administrator permissions to cheat intruders. In this way, it is difficult for intruders to find out which account has administrator permissions, which reduces the risk to a certain extent.

3. Prevent Guest Account intrusion

A Guest account is a so-called Guest account. It can access computers but is restricted. Unfortunately, Guest also opens the door for hacker intrusion! There are many articles on the Internet that show you how to use the Guest user to obtain administrator permissions. Therefore, you must prevent system intrusion based on the Guest account.

Disabling or permanently deleting a Guest account is the best option, but when you have to use a Guest account, you need to do a good job of Defense through other means. First, set a strong password for Guest, and then set the access permission for the Guest account to the physical path in detail. For example, if you want to prevent the Guest user from accessing the tool folder, right-click the folder and select the "Security" tab in the pop-up menu, you can see all users accessing this folder. Delete all users other than administrators. You can also set permissions for the corresponding users in the permissions, for example, you can only "list folder directories" and "read", which makes it much safer.