What should I do if I encounter network hijacking? A full summary of practical solutions

in the daily process of surfing the Internet, many people have encountered situations where they open commonly used websites but jump to unfamiliar advertising pages, search results are maliciously tampered with, and even network connections are inexplicably interrupted. This is likely to be a case of network hijacking. Network hijacking will not only interfere with the normal network experience, but also may bring risks such as privacy leakage and property loss. This article will summarize practical solutions from identification, solution to prevention, and help you deal with network hijacking effectively.

How to quickly identify network hijacking?

want to solve the problem of network hijacking, first of all to accurately determine whether they really suffered such attacks, to avoid misjudging other network failures.

1, observe the page jump abnormal

normal access to well-known websites, suddenly jump to contain vulgar advertisements, false winning information unfamiliar pages, or in the page loading process is forced to insert pop-up ads, and repeated after closing, this situation is likely to encounter network hijacking. For example, open the search engine homepage, but directly jump to the unknown navigation site, is a typical web page jump class network hijacking.

2, check the network data abnormality

use network speed measurement tools to find that the actual network speed is very different from the operator's commitment, or in the absence of downloading large files, traffic consumption is abnormally rapid, accompanied by slow web page loading, frequent video cards and other problems, but also be vigilant against network hijacking. Some network hijacking will push malicious content by occupying bandwidth resources, resulting in normal network resources being squeezed.

two, encounter network hijacking emergency solutions

once confirmed network hijacking, it is necessary to take emergency measures to quickly restore the normal network state, reduce unnecessary losses.

1, modify the local DNS server address

most network hijacking is achieved by tampering with the DNS resolution path, manually changing the reliable public DNS server address is a common solution. You can choose the domestic public DNS, or you can choose the international public DNS, find the DNS server option in the network settings of the device, replace the default address with the above public address, and it will take effect after restarting the network connection.

2, clean the device malware

part of network hijacking is achieved through malicious software and browser plug-ins installed in the device. You can use regular antivirus software to conduct a comprehensive scan to remove malicious programs in the device, and open the browser's extension management page to delete plug-ins with unknown sources and abnormal functions. Restart the device after cleaning, and then check whether the network status returns to normal.

Third, optimize the network environment to prevent network hijacking

solve the current network hijacking problem, it is also necessary to optimize the network environment and reduce the probability of encountering network hijacking again from the root cause.

1, set the router security password

home router if a weak password or password is not set, it is easy to be hacked, and then implement network hijacking. It is recommended to use a complex password containing letters, numbers, special symbols, and regularly change the password to open the router's WPA3 encryption mode to improve the security of the wireless network and avoid being attacked by malicious devices accessing the network.

2, turn on the device firewall function

the firewall function of end point devices such as computers and mobile phones can effectively intercept malicious network requests and reduce the risk of network hijacking. Find the firewall option in the system settings of the computer, make sure the firewall is turned on, and set it to block all unauthorized inbound connections; mobile phones can turn on the network firewall in the security center, and manage the network permissions of the application.

IV, Encounter network hijacking rights and help

if the problem of network hijacking has not been solved after self-handling, or has encountered network hijacking that has caused serious losses, it is necessary to protect rights through formal channels for help.

1, contact the network operator feedback

call the operator's official customer service number to describe in detail the specific situation of network hijacking, including the time of the problem, the specific content of the page jump, and the results of self-investigation. The operator will arrange technicians to detect the network line, check whether there is network hijacking caused by the tampering of the operator's network node, and provide targeted repair plans.

2, Complaint to the network supervision department

If it is confirmed that network hijacking involves malicious attacks, privacy leakage and other violations of laws and regulations, you can complain and report to the Cyberspace Administration of China, the Ministry of Industry and Information Technology and other network supervision departments. Prepare relevant evidence, such as screenshots of abnormal pages, network traffic detection reports, etc., and submit it to the supervision department, and the professional department will intervene in the investigation and handling.

To sum up, network hijacking is a common cyber security problem, from rapid identification to emergency solutions, and then to long-term prevention and rights protection for help, each link has a corresponding practical solution. Everyone should pay attention to the abnormal network state when they go online every day. Once they encounter network hijacking, they should first modify DNS, clean up malicious programs and other methods for emergency treatment, and then optimize the network environment to do a good job of long-term prevention. If necessary, with the help of operators and regulatory authorities, they can effectively ensure the safety and smoothness of network use.