What do you think of the news that oppor9 has been hacked?

If you set a blacklist, then the text message can't be sent in.

1 and R9 enter Settings-Information-Harassment Blocking-Blacklist-Add Number. After saving, the calls and messages of blacklisted contacts will not be received.

2. Go to Settings-Phone-Blacklist-Add. After adding a number, you can intercept incoming calls and messages from that number.