How to filter SMS notifications for big data filtering?

If you receive a phone call or text message saying that you have been screened by big data, there may be epidemic-related risks. Please don't be nervous. I hope this article can solve some of your doubts.

Why am I being screened by big data?

Maybe it's because you have one of the following situations:

(1) You may have lived in a high-risk area in the last 14 days;

(2) You may have spent some time with the confirmed cases;

(3) You may have been in the same car with Jie Mi or Jie Mi; It is also possible that the person holding your mobile phone number has the above situation.