The vigorous development of the internet is a good thing, but it also hides dangers, and all kinds of illegal crimes begin to occur online. In this era of big data, our personal phone numbers and other privacy will inevitably be leaked, which is why we will receive many messy harassing calls.
For the number of suspected fraudulent calls, I have counted the following four types. If you don't know, then follow me to understand!
Numbers starting with 1 and 400
The phone number starting with "400" is generally only used as the called party, so if you receive a phone number starting with "400", it must be an irregular company. It's either an advertising phone call or a fraudulent phone call.
8 digits at the beginning of 2.952
Calls starting with "952" are generally bad harassing calls or bank insurance, but regular enterprises will have relevant tips. If you encounter a call starting with "952", you can hang up directly without any prompt, or you can use a black screen to prevent callback.
Numbers starting with 3,00 or+.
Calls starting with "00" and "+"are basically international calls, that is, calls from abroad. If you don't have any relatives or people you know abroad, then this may be a fraudulent phone call.
4. Unknown call
Unknown calls will not show the number, and any government, institution, bank, enterprise, etc. You don't use the phone without displaying the number, so you hang up when you meet this kind of phone and don't need to pay attention.
Network security issues must be taken seriously, and if you are not careful, you will fall into the trap of criminals. The above four suspected fraudulent phone calls are what I know, and I hope they can help you. If there is any supplement, welcome to popularize it in the comment area. Let's increase our knowledge together!