First, if the fraud gang simulates blued to send you short messages, what about other short message verification codes?

Second, if it is true that he only needs this verification code to log in to his previous account, then if this account is illegally operated after logging in, you will not be found illegal, but you will also be questioned, which will bring unnecessary trouble.

Third, if this software can be set to query friends by number, will it affect your privacy if it is opened? Similarly, can you cheat by pretending to be yourself? Although I can call you to ask, there must be someone who doesn't call. Whose fault is it that you are really cheated?