I keep getting messages from update-mac.com telling I have a virus. I. don't want to click on it.

creiby wrote:

https://discussions.apple.com/content/attachment/693e1c92-ef9e-4219-b5c0-68a1ff9f8276

No web browser can detect and inform you have adware / malware / or a virus.

Recognize and avoid phishing messages, phony ...

Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

Stop Unwanted Notifications

Stop unwanted Notifications - Apple Community

About those "<app> will damage your computer" messages

About those "&lt;app&gt; will damage your… - Apple Community

Effective defenses against malware and other threats… - Apple Community

Effective defenses against malware and ot… - Apple Community

like leroydouglas said:

Stop Unwanted Notifications

Stop unwanted Notifications - Apple Community

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creiby wrote:

How do I effectively get rid of "update-mac.com"?

How do I stop their annoying banners?

Did you read the hot link references provided above...?

I am quite confident will find the answer there and learn something along the way.

Go under safari settings, go to the websites tab and on the left side go down to notifications. The websites will pop up, select the update-mac.com one and deny notifications. After doing that make sure its select it and click remove and voila!