In response to media reports that "the IP address can be changed for a minimum of 6 yuan", Ge Jian, a 360 security expert, said that proxy IP has become a necessary tool for black products to disguise their identity. For ordinary users, if the IP ownership is modified through proxy IP, it may cause privacy disclosure. Recently, major mainstream apps announced the launch of IP home function. The launch of this function makes many big V show its original shape. Many bloggers say that the IP territory of foreign bloggers is displayed at home.
Therefore, the paid IP proxy business began to explode, and the IP can be changed for a minimum of 6 yuan. So, what is the principle of modifying the IP address? Will it cause security risks to users?
Ge Jian believes that the modification of IP has always existed, mainly due to the often called "IP proxy" function, that is, changing the network export IP of the original equipment. Through the long-term tracing analysis of fraud cases, it is found that proxy IP has become a necessary tool for black products to disguise their identity. In the early stage, IP switching was mainly carried out through fixed network IP, and various "VPNs" specialized in selling IP proxy resources were derived. PC, mobile phone and other devices were connected to the network where the VPN is located, and Internet behavior was carried out through the network, or the proxy login function of some applications was borrowed to bind the purchased proxy IP with it, so as to realize the change of the export IP of the application.
However, at present, most of the servers provided by sellers to replace the IP home service are in China, which are only short-term IP, and there are few places to choose. Black products have begun to "maliciously" obtain the IP resources of operators by means of second dialing.
"The so-called second dialing is to continuously redial in a short time. At this time, the IP of the device changes. If the second dialing resources of multiple provinces, cities and regions are connected, mixed dialing can be realized".
360 believes that by using second dialing IP, black production molecules can quickly change IP or specify IP ownership, bypass the restrictions of time, region and times, and directly bypass the platform IP risk control. This second dialing IP with low cost and high concealment has gradually become the future trend of proxy IP.
For ordinary users, if the IP home is modified through proxy IP, privacy disclosure may be caused. "The requests sent by netizens will be transmitted through the proxy server, and once the free proxy IP is used by network hackers, the browsing records, account passwords and other user information generated by netizens through the free proxy IP may be leaked." Ge Jian said.