Q: i got a voice message on my computer saying my computer had a virus and gave me a number to call. is this a legit number?

No. It's a phishing scam. Do not call any telephone number or click on any links. Just delete the message.

It is not a virus, but an annoying popup. Never interact with the site, or call any number presented.

Force quit Safari, then restart Safari while holding the shift key.

Identifying fraudulent "phishing" email

Beware of Browser Pop-Up Tech Support, Phishing Scams

Phishing & Other Suspicious Emails

Report such emails to: :abuse@apple.com