RBT56 wrote:
I thought your suggestion had it fixed. I did everything except the anti-virus (yes, I am paranoid). I didn't see those sign-in boxes last night or this morning until 11 AM on the East Coast. Then this one showed up again:
https://discussions.apple.com/content/attachment/d7caea06-b87f-4010-a8ec-ccf3028fc547
I have no idea what happened between the day they started appearing and the day before.
Rob
Windows-like viruses that self-replicate and affect macOS don’t exist because of the underlying UNIX Foundation and permission limitations.
Get rid of this useless software via the Developers specific Instructions
The macOS operating system resides in a sealed and read-only volume that can’t be opened by users or third-party applications.
Mac app security enhancements are sufficient to protect computers from malware.
Adware and Malware can affect computers and are often downloaded from “shady” websites or developers who inject them into downloads.
Source: User tip from @Kurt Lang
What is malware? - Apple Community