How much is a server attack? What is the principle of server attack

In today's digital era, network security has become a problem that every enterprise and every individual must face. With the continuous development of network technology, hacker attacks have become more subtle and complex. Among them, server attack is one of the most common means used by hackers. But do you know how much a server attack costs? What is the principle of server attack? Today, we will discuss this topic in detail.

How much is a server attack?

To know how much a server attack costs, first of all, it should be clear that server attack is not a simple matter. It involves advanced technology and complex means, so the cost is also very high. The cost of server attacks varies according to different attack methods, attack targets, attack duration and other factors.

According to the statistics of the network security company, a successful server attack may cost thousands or even tens of thousands of dollars. This cost includes but is not limited to: purchase of attack tools, lease of attack platforms, employment of technicians, payment of illegal property protection fees, etc. In addition, if the attack fails, it also needs to bear legal liability and compensate for losses.

What is the principle of server attack?

The principle of server attack is that hackers use the loopholes and weaknesses of the server to illegally control, destroy and steal data from the server through various means. Common server attacks include:

1. Violent cracking : Violent cracking is one of the most primitive and direct means of attack. Hackers try to break the login password of the server by constantly trying different user names and password combinations. Once successful, you can perform any operation on the server.

2. SQL injection SQL injection is a common means of network attack. It makes use of SQL statement vulnerabilities in website applications and injects malicious SQL code to achieve illegal access, tampering, deletion and other operations to the database.

3. Cross site scripting attack (XSS) Cross site script attack is an attack method that can control user's browser and steal user information by injecting malicious script code into web pages by taking advantage of vulnerabilities in website applications.

4. Denial of service attack (DDoS) Denial of service attack is a kind of attack against website by means of a large number of requests, connections, data packets, etc., which makes the server unable to provide services normally.

How to prevent server attacks?

To effectively prevent server attacks, we need to start from the following aspects:

1. Strengthen server security configuration : Strengthening server security configuration is the basis for preventing server attacks. Including but not limited to: regularly update the system, software, plug-ins, etc; Close unnecessary ports and services; Set strong password, access control, etc.

2. Regularly detect server vulnerabilities : Regular detection of server vulnerabilities can timely discover server weaknesses and vulnerabilities, and take corresponding measures to repair them. You can use various security detection tools, such as Nessus, OpenVAS, etc.

3. Enhance website application security : Enhancing the security of website applications can effectively prevent SQL injection, XSS and other attacks. Including but not limited to: filtering and verifying user input; Use parameterized queries, precompiled statements, etc.

4. Establish a secure backup mechanism : Establishing a secure backup mechanism can recover server data as soon as possible and reduce losses when server attacks occur. It can regularly back up important data, incremental backup, image backup, etc.

Server attack is one of the most commonly used means of hackers. It involves advanced technology and complex means, so the cost is also very high. To effectively prevent server attacks, we need to start from many aspects, including strengthening server security configuration, regularly detecting server vulnerabilities, enhancing website application security, and establishing a secure backup mechanism. Only by taking effective defensive measures can server security be effectively protected.