Warning: Media player is out of date...What is this?

[carolannb]

This message keeps coming up on my MSN page...how do I stop it?

 

[pm-r]

You might want to check the MSN support site as that message may actually be a malware popup.

I don't know if Malwarebytes Anti-Malware for Mac would catch and destroy it but might be worth trying. It sure won't hurt anything to try and you can get it here:
https://www.malwarebytes.org/antimalware/mac/

EDIT:
Here's an old Windows article covering this:
http://malwaretips.com/blogs/update-media-player-virus/

So it looks like the suggested software will work for Macs now that they have a working version.

 

[MacInWin]

Adobe has been releasing updates to Flash more frequently. That might be it. You should be able to see a Flash preference pane in System Preferences. Use that to check for a Flash update and if you need it, install it. (Most of them contain security updates, which Flash desperately needs.)

 

[harryb2448]

What you are referring to updated Flash Player to version 19.0.0.185