Mobile phone information problem

If your friend is sending you a text message, but the content of the text message has changed, which is inconsistent with what he sent, it may be that his mobile phone has turned on the magic message.

Another is that someone else's mobile phone has enabled shadow number attack, which means that a mobile phone number can carry several shadow numbers. Shadow number refers to the virtual number set by the mobile phone owner himself, and he can set it as he wants, so that when he sends you a text message, he will display his shadow number instead of his real number. This attack can have a movie number of 10 yuan and 5 yuan for one month, and at most three can be set.

Another 8-digit short message received by the landlord is mostly an online virtual number, which is sent to many users by the short message sender used by the fraud group. If you dare to do it, it will be miserable. There are only some entertainment news. The developer charges you a certain energy attack fee every month and sends you a funny or related knowledge message every day.