Yes, Craig, you were ONE of several.
I wouldn't think you need to do much---email accounts are a dime a dozen, you may want to get an account and email your contacts that "It wasn't me"!! Although when I got a couple "get rich" emails that all had the same "intro" and sent me to a link---I just deleted them all. (This was BEFORE I heard the news report).
These days, I think most of us can "smell a skunk" when the email just doesn't "read right" to have come from you!!
No harm done, no worries!!