Nearly everyone has a Yahoo account, so this is likely to affect you and the users on your network.
Today, Yahoo disclosed that at least 500 MILLION accounts were hacked. They believe it was a state-sponsored attacker.
It is recommended that passwords AND security questions for ALL Yahoo accounts be changed.
Again, because you or your users may be logging into Yahoo accounts on your computers, PLEASE FORWARD THIS TO ALL YOUR TEAM MEMBERS.
We also suggest that you forward this to all Yahoo users that you know!
See below for a reminder as to why you shouldn't be using any free email account for your business!