Quarantine is where 1krBlocker keeps messages that look risky, away from your inbox, so you don't tap a scam by accident. Nothing is deleted: you can look at every message there and decide yourself.
What goes there: messages rated Suspicious, High risk or Dangerous, and messages from senders you blocked. The filters at the top (All, Suspicious, High, Dangerous, Blocked) show them by risk.
Quietly: quarantined messages don't make a sound. The badge on the tab counts new ones, and a daily summary tells you if anything was kept away (you choose its time in Settings).
For each message you can:
- Release to inbox: move it to your inbox if it's genuine.
- Delete: it goes to the trash and stays there for 30 days.
- Block sender: future messages from that sender go straight to Blocked.
- Report: report it as a scam.
- Why?: see exactly why it was kept aside.
Links in quarantined messages are never tappable, and their attachments stay isolated.
How long they stay: set it in Settings → Keep quarantined messages (30 days, 90 days, or forever); after that they move to the trash.
Quarantined messages are kept only in 1krBlocker, not in the phone's message store, so other apps can't show them. If you switch to another SMS app, 1krBlocker offers to move them there first.