A message with the bar Be careful. Tap for details was delivered to your inbox, but 1krBlocker noticed a few warning signs (Low risk). It wasn't risky enough for quarantine, so you see it normally, with a reminder to take care.
In the conversation list, such conversations show a small yellow shield.
Tap the bar to open the Why? screen and see what was noticed: often a short link, a new sender, or words like "payment".
Be careful with links and never share codes or passwords by text message.
If it's a scam, use Mark as spam or Block sender in the message's menu; if it's fine, Not spam on the Why? screen helps 1krBlocker learn.
The notification for such a message starts with a warning and never shows the link.