How to identify short messages sent by "pseudo base stations"

Then, as ordinary users, how do we judge whether we are attacked by pseudo base stations?

Generally speaking, the mobile phone has the following phenomena, which may represent that it is being attacked by a pseudo base station:

1, cell phone signal strength is erratic.

2. Under normal circumstances, the mobile phone inexplicably falls back to the 2G network.

3. The mobile phone receives a large number of suspicious text messages.

The mobile phone has a signal, but it can't answer the phone and surf the Internet.

For operators, if there are pseudo base stations raging, they will also find some clues:

1, the offline rate of users rose without reason.

2. Some base stations have suspicious congestion (because pseudo base stations will trigger a large number of location update messages).

3. The signal quality complaints of users suddenly increased.

From the point of view of ordinary users, it is difficult to defend against pseudo base station attacks. Some mobile phone manufacturers will use big data analysis to intercept, and the effect is very limited. The only thing we can do is to use secondary authentication (such as face recognition) for important accounts (such as online banking). In addition, try not to disclose your personal information (according to the current situation, it is useless to say it).