https://community.norton.com/en/forums/unsafe-site-alerts-wont-stop
CONCLUSION: I wish Norton would provide more useful information when you click on the alert, such as which tab/website was the culprit. "Unsafe site" "we recommend you do not use this site" is not very helpful. I.e. This message pops up even when I'm not using the phone, so I have no idea what it's referring to. There's nothing to click on that will give the user more detailed info, and nothing in Norton 360 that says there is an issue.
Here are the highlights of the original forum post:
Ghost alert: "unsafe site" "we recommend you do not use this site"
I keep getting this alert message popping up on my phone - sometimes 3 or 4 times in a row. Often it happens when I'm not even using the phone - it's just laying on my desk. The problem is, other than the Norton logo and the messages quoted above, there is nothing else on the alert (like "see details" for instance) - nothing I can click on that will take me to any more info. If I open Norton 360 app, it's not showing any issues - everything is OK. I've tried clearing iPhone storage for Safari, but the alert keeps coming back (although I'm not even sure it's a Safari problem). My iPhone 14 iOS is up to date and I've restarted a couple of times.
It's becoming quite annoying. How do I: a) figure out what's causing it and b) stop it?
------------
The issue seems to be resolved now. No new alerts after closing the Safari tabs.
My guess is that one of the tabbed websites was deemed "suspicious" by Norton, and that tab would occasionally phone home to check with the site's server. Norton saw that communication and sent the alerts. Once the tab was closed, the issue was resolved.
I wish Norton would provide more useful information when you click on the alert, such as which tab/website was the culprit. "Unsafe site" "we recommend you do not use this site" is not very helpful.