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You may notice that Antivirus One continues to show ‘Dangerous Notification Threats’ alerts even after all websites have been removed from Safari’s Website Settings and the Mac’s System Settings.

This guide explains why this happens and provides step-by-step instructions to resolve the issue, so the alerts no longer appear.

ℹ️ Why is this happening?

  • This issue is caused by upgrading from an older version of macOS to a newer one. On the previous macOS version, Safari stored website notification permissions in a system file called com.apple.ncprefs.plist. In the new macOS version, the system no longer uses this file to manage website notifications.
  • After the upgrade, the old notification permission records may remain in the plist file as leftover data. Even after the URLs are removed from the system, Antivirus One may continue to display warnings because the scan results are cached in the app’s database.

✅ NOTE: This is a rare issue. It only affects users who upgraded macOS and previously allowed website notifications in Safari. New installations or users without prior notification history will usually not experience this problem.

🛠️ How do I fix this?

Step 1: Quit Antivirus One and Safari

  1. Save any work or bookmarks in Safari.
  2. Close Safari completely.
  3. Click Antivirus One on the menu bar, then choose Quit.

Step 2: Remove or Uninstall Antivirus One

  1. Open Finder → Applications.
  2. Find Antivirus One, right-click it, and choose Move to Trash.
  3. Click Go → Go to Folder… in Finder.
  4. Type: ~/Library/Containers
  5. Find the folder com.trendmicro.DrSafety and move it to the Trash.
  6. Empty the Trash.
  7. Restart your Mac.

Step 3: Install Antivirus One

  1. Click the link below to start downloading Antivirus One:

    Download Installer

  2. Click the Get button, then click Install.
  3. Wait for the app to finish installing, then click Open.
  4. Click Accept and Continue for the "Privacy and Personal Data Collection Disclosure."
  5. Click Accept and Continue on the Welcome Page.
  6. Click Grant Access, then click Allow to finish the installation.
  7. Click Upgrade from the main program window, then select the 'Already Paid? Restore' option.

💡 Tip: Make sure you are signed in with the same Apple ID used to buy Antivirus One.

Step 4: Check Everything

  1. Open Antivirus One and run a scan to make sure it works.
  2. Confirm that it shows the latest version in the app settings.
Keywords: Antivirus One, reinstall, dangerous notifications, remove URLs, macOS, Safari notifications, app reinstall, threat alerts, fix alerts
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