What should I do if my mobile phone card keeps receiving spam messages after being filed by the National Security Bureau?

The solution to the problem that mobile phone cards have been receiving spam messages since they were filed by the National Security Bureau;

1. Open the telephone interface, click the two small white dots in the upper left corner, and then click the harassment interception.

2. Continue to click the interception rules in the upper right corner, which are divided into call interception and information interception.