Computer Help and Support

The good news is that your devices (Mac, iPad, iPhone, router) are mostly likely just fine.

It's really pretty easy for the bad guys to publish a web page that "takes over" your screen and tries to prevent you from leaving (while putting up a phone number to call for "help" ).

I believe they often appear from ad sites that others (e.g. amazon.com) serve up in addition to their actual home page.

Since your Mac and iPad (and iPhone) share web browser history they could easily appear to both be hit at the same time. And just luck-of-the-draw that the iPhone wasn't hit as well.

Most useful thing to do: learn how to kill your browser when it's locked up like this.

On the Mac, you can tell the 'Finder' to "Force Quit..." and pick Safari. Then hold the shift key down when you relaunch Safari and you should be fine.

On the iPhone & iPad you can double-click the home button and then swipe up to kill off a process. When you launch again, if it's still trapped, do the kill again, but then use the Settings app to clear the Safari cache before starting it up again.

There's a really good reference & description for all of this in the Apple forum message:

Phony "tech support" / "ransomware" popups and web pages
https://discussions.apple.com/docs/DOC-8071