Ping An Insurance sent a text message saying that there was a birthday present, so please reply Y specifically. Is it true?/You don't say.

The probability of such a good thing is generally not high. If it is Ping An Gold Card VIP and above, there are birthday gifts! If you are really not sure, you can manually dial to choose a birthday present.

First, the characteristics of the pseudo base station:

1, small size, light weight and easy to carry.

2, mobility, you can carry it on your back or put it in the car, and you can send it wherever you go.

3, high concealment, because the frequency of the pseudo base station is consistent with the mobile frequency, it is difficult to be found in time.

4. Wide coverage area, theoretically from 100m to 3km in diameter.

5. Short messages are sent in large quantities and at high speed, and tens of thousands of short messages can be sent every hour, with no upper limit on the total amount.

Second, the pseudo base station criminal means:

Criminal suspects can use pseudo base stations to impersonate official numbers (such as bank customer service) to send short messages in groups, and use other people's mobile phones to make calls for illegal and criminal activities. Basically, if the bank score is full or the bank password will be invalid, let the victim log on to the fraud website provided by him, and cheat the funds in the victim's bank card by taking the victim's account password or implanting Trojan virus into the victim's mobile phone on the website. According to the analysis of Tencent technicians, this is caused by an inherent security defect of GSM mobile phones. Under the GSM system, the base station will verify the mobile phone, but the mobile phone will not verify the base station. Whoever has a good signal will go with him. Once connected, scammers can send short messages to nearby mobile phone users. "Pseudo base stations are not under the control of the Ministry of Industry and Information Technology. Even if the push number is blacklisted, another batch of numbers can be changed. Pseudo base stations generally have hundreds of phone numbers on one machine and cannot be eradicated. "

Some security technicians suggest that the best way to avoid being attacked by pseudo base stations is to give up using GSM and switch to GSM. 3G？ Or? 4G？ . "Because? 3G？ And then what? 4G？ The difference between the standard and GSM is that they will conduct two-way authentication between the mobile phone and the base station to avoid the situation of' whoever goes with the good signal'. "