A strange number sent a text message at 10: 30 at night saying that the express delivery was downstairs, and asked me to pick it up as soon as possible. He is still waiting to see him off. I just saw

A strange number sent a text message at 10: 30 at night saying that the express delivery was downstairs, and asked me to pick it up as soon as possible. He is still waiting to see him off. I just saw it this morning, so I called back carefully to ask. Many people randomly enter the 13 digit phone number and then send a message or make a phone call, which is deceptive! I received a strange phone call yesterday, saying that it was my leader and asked me to go into the office to find him! ! I said, who are you? He said you don't even know the voice of the leader? Come to the office quickly. I hung up. In hindsight, isn't it easy to locate mobile phone calls? When he was talking to me, I felt he was giving me the runaround, so I hung up. Being a colleague opposite me asked me if I called you into the office. I was shocked. I said, how do you know? She said that she had received such a call. It is impossible to prevent fraud, mainly because you are careful.