I saw a new icon in system tray at the bottom of the screen: "Diagnostic and Usage Messages". I opened it to find a lot of unfamiliar, disconcerting messages since the 30th. Should I be concerned? If so, what is causing, and what to do?
I am running OS X Yosemite v 10.10 if that matters.
I am running OS X Yosemite v 10.10 if that matters.