Husband did a scan after receiving fake McAfee alerts

When I logged on to my laptop this morning, it appeared that my Firefox was updated. I immediately was inundated with pop up alerts from McAfee. I checked it and learned it was a scam. However, my husband thought it was legit and allowed them to do a scan!!!! He didn’t download any software. What do we need to do?

(I did see the solution to stop these pop ups and have already resolved that issue. I’m just worried that some party scanned my laptop.