Virus Alert! in Mac Browser.What I can do to resolve this issue?

Hello Erors,

We'd be happy to provide you with some information. Based on what you've shared with us, is likely caused by a browser extension or website notifications trying to get your information. To get started, we recommend checking Safari for unwanted/unknown extensions and removing them. You can learn how to do that here: Use Safari extensions on your Mac - Apple Support

These steps may help:

Uninstall or turn off extensions

Choose Safari > Settings (or Preferences), then click Extensions.

* To turn off an extension, deselect its checkbox.

* To uninstall an extension, select the extension and click the Uninstall button. If you can't determine what an extension does, or you don't expect to use it again, you should uninstall it.

If that doesn't resolve the issue, you can check for website notifications. You can learn how to do that here: Customize website notifications in Safari on Mac - Apple Support

These steps may help:

Stop receiving notifications from a website

1. On your Mac, choose Apple menu  > System Settings, then click Notifications  in the sidebar. (You may need to scroll down.)

2. Go to Application Notifications on the right, click the website, then turn off Allow Notifications.

3. The website remains in the list in Notifications settings. If you want to remove it from the list, deny the website permission to send notifications in Safari settings. See Change Websites settings.

Another thing you may want to check is Login Items. Again, remove anything you don't recognize. Open items automatically when you log in on Mac

For more information about how Apple operates a threat intelligence process to quickly identify and block malware, check this out: Protecting against malware in macOS - Apple Support

Thanks.