Norton have an irritating tendency to try to scare their users. I will leave it up to you to decide why they might wish to scare people who use their products...
WS.Reputation.1 can mean they have too little data on a product to know if it is safe. Yes that's right if the file is unknown to them they make up this fake virus to claim it might not be safe!
https://community.norton.com/en/forums/clarification-wsreputation1-detection
When you are considering renewing your anti virus solution on behalf of all small developers I would ask that you factor in this to your decision making process and perhaps choose a package that doesn't do this...