Suspicious Activities happens around the world. When a normal user enters the system, the website does not let the normal user to enter its content immediately by showing a verification page. Sometimes, the user needs to solve some kind of nonsense things like choosing the chimneys, roads, buses, and even typing the numbers. Sometimes, it fails and the problems runs in a loop. In this topic, why the server marks the user as suspicious activities.
Definition of suspicious activities
Before explain to any topic, let me explain about suspicious activity. When a user enter the website, some of the information are provided as the client header information and the request information for specific pages. It may includes our browser, operating system and so on. According to these information, the server can decide we are legit or some sort of suspicious activities.
The calculations are in many ways and we will state as follows:
1. Machine timing differences
When a visitor is using a VPN, the timezone difference occurs. The request header may send the timezone of Asia/Yangon but the IP address is from New Jersey, United States. The system may flag the user as suspicious. Due to the reverse information of the ip address and its location, the user timezone and the ip address do not match.
2. The browser headers
The browser headers are sometimes a red flag. Some misinformation in client browser may flag the user as suspicious. When the user is using custom or outdated browsers, this problem arises. The system needs to recalculate the legit user to allow access.
3. The ISP method
When there is no VPN or some sort of differences but the system do not let the user in. It may be mostly because of the ISP. The ISP have some kind of bouncing relays and they seems to be suspicious. It mostly happens when the ISP purchases new IP addresses blocks but they are in transfer. The old subnets and new subnets locations are not updated on the ip address databases.
4. The AI method
Now, Everywhere is AI. The AI calculated a lot of factors to mark as suspicious. It is like enigma and you need to find the solution to bypass yourself. or contact network administrator.