Will the SMS group sending platform reveal customer information?

This depends on the partner you choose. If your partner wants to steal your information, he can easily find it! However, this is also the unspoken rule of an industry. The platform sends it to you, and the company will not use your information. These things are all involved in the contract. If a company sells customer information like this, I think it can't survive in the industry. Choosing a formal enterprise, cooperation is very important!