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As a network security engineer, the word "website security" seems to be far away from life. Usually, many people open their computers to log in and browse websites at most. As for website security, they have never paid attention to it. In recent years, topics related to network security have attracted wide attention from the society. I remember that the idol series "Dear Lover" of the summer fire last year described the dream path of the male leader to win the CTF championship for China. In the field of network security, CTF refers to a form of technical competition between network security technicians. Of course, The success of this play is that it has made many young people interested in the field of network security, and pen is one of them. The purpose of this article is to introduce the relevant knowledge of website security from the perspective of a network security engineer in more understandable words.
1、 Definition of website security
Baidu entry defines website security as a series of security defense work to prevent websites from being hung up by hackers, tampering with website source code, being stolen data and other behaviors. In my understanding, website security is the defense you make when someone attacks your website, Or it is a series of security protection deployment to prevent others from attacking the website in advance. From this point of view, website security is of great significance for the normal operation of websites.
2、 Importance of website security
Why is website security so important? In the rapidly changing contemporary society, the Internet has become a new and popular industry. Website technology has developed rapidly and penetrated into all aspects of human life. More and more things need to be done through the Internet. At the same time, website security issues have become increasingly prominent, but most website development and construction companies only consider the stable use of normal users, However, little is known about website security. If problems and vulnerabilities are found in website security, the repair method can only stay in deleting page code or restoring website backup. It is difficult to repair the source code according to the specific vulnerability principle of the website. However, hackers have a keen insight into vulnerabilities, and these vulnerabilities existing in websites will be dug out, which will become opportunities for hackers to gain benefits directly or indirectly.
Most website operators only recognize the value of the website as a server or the construction cost of the website. They think that the price of the website security protection service added to the website is a little high. In fact, after the website is attacked, the economic loss of website traffic loss, customer loss and order loss has far exceeded the cost of website security services. So only when the website is secure can it bring you higher profits. Unfortunately, in practice, there are quite a number of units and personnel responsible for websites. They can only realize this when websites are seriously damaged by attacks. At present, the state has done information security level protection for the security of websites. If your website does not meet the national security standards, and there are website vulnerabilities, hackers attack and tamper with it, you will immediately receive a notice from the Internet Police Department, and in serious cases, you will be fined and bear criminal responsibility for causing significant impact.
The website security incidents collected by the author mainly fall into the following categories:,
1. The homepage of the website was tampered with as the content of the lottery, and the website was hung up and implanted into the black chain.
2. Modify the order status of the payment platform and change the unpaid status to paid status, causing huge property losses and reputation losses to the payment platform and merchants.
3. The customer information of the website operator is leaked, affecting the company's reputation.
4. The user data in the APP has been tampered with, resulting in the user account being withdrawn at will.
5. Hijack the website, causing users to click to enter the website and then jump to the bad website.
The above problems are very serious. Once they happen, they will bring incalculable economic losses to the company. Therefore, the author suggests that in addition to the website function design at the initial stage of website construction, it is also necessary to contact a website security company with rich experience to provide penetration testing services and website security reinforcement services. Domestic network security companies that have done quite well, such as SINE Security, Lvmeng, Qimingxing, Shenxin, Yingdun Security, It is not those who suffer losses that realize the seriousness of the matter.
3、 How to carry out website security
Generally, website security is carried out as follows:
1. After receiving the message that the client's website has been attacked, the website security staff will first determine whether the website has been maliciously attacked according to the client's description, and then quickly reflect which parts of the website may be the target of the attack, such as the server has been attacked, the home page code has been tampered with, and the website has been hijacked and redirected.
2. Check the possible attacks one by one and repair the vulnerabilities, so as to eliminate the security problems on the customer's website.
3. In line with the attitude of being responsible for customers, starting from the source code of the underlying website, we will strengthen the security of the customer's website, carefully check the loopholes in the website, and conduct a detailed manual security audit of each file code, so that the customer's website can become truly secure, so that hackers have no place to start, and help the customer's website go further.
Finally, as a network security engineer, he has already recognized the importance of website security. For many website operators, website security is an indispensable step for successful website operation. He hopes that website security can get more widespread attention.
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