What does it mean to intercept strange text messages?

It means that intercepting strange short messages is to protect the privacy and safety of users.

Interception of strange messages means that mobile phones automatically intercept or filter messages sent by strangers to protect users' privacy and security. Strangers are criminals or spammers, and the content of short messages contains bad information such as fraud, advertisement and harassment. By intercepting strange short messages, users can avoid the interference of bad information and improve the experience and security of mobile phones. The mobile phone will judge whether the sender of the short message is a stranger according to rules or algorithms, intercept or filter it out, and the user will check the intercepted short message when necessary to ensure that important information is not missed.