Why do mobile phones always receive advertising messages?

Hello! You can install 360 mobile guards or other security software to intercept spam messages. As for your number. 1, spammers will send advertisements in groups through number segments, and all existing numbers will receive short messages. 2. Did you fill in your mobile phone number online or in a public place, or did you leave your number with a certain unit, such as a bank? Some units may sell your number privately to advertisers for profit. 3. Some service providers often check and test the effective number segments by telephone group dialing. After the phone is dialed, it will only ring once and then hang up. Advertisers mainly obtain a large number of figures through the above three ways.

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