norton does make false statements on scans:
Google found out: https://fortune.com/2016/06/29/symantec-norton-vulnerability/
Then racket911 found a easy way to break anti-software: https://www.rack911labs.com/research/exploiting-almost-every-antivirus-software/
So has you can see Norton is not safe and does not protect your computer, the scan was a lie.