What does the Tangshan National Security Committee mean by sending short messages?

Sending short messages by Tangshan National Security Committee is a safety early warning mechanism. The short message sent by Tangshan Security Committee refers to a kind of safety early warning information sent by Tangshan Security Committee to the public, aiming at reminding people to pay attention to social security and their own safety. This kind of short message includes safety reminders, preventive measures and emergency treatment methods to help people find and respond to various security risks and threats in time.