We've been spoofed!

My main email account has been used to send spoof emails about Canadian pharmacies and pornography, I think. I apologize to everyone who got it and congratulate everyone whose spam filter didn't allow it through.
The emails didn't actually originate from my account, but the email address was applied. Yahoo has been surprisingly unhelpful on the subject. I guess because they know they are susceptible to the problem.

FYI, I don't ever send emails with unrequested links, no subject line, and no other explanation. Have you ever known me to send anything without a two-page dissertation on any topic?! Also, I've changed my password, scanned my computer for viruses (actually I do that every day), and added a "signature" to my emails. If it doesn't have the signature, ("Visit Screamin'John and Frat Boy Christopher") it's not from me! I will also clean out my address book, and remove any infrequently used addresses.

I'm sorry to have troubled you. I'll post about John's exciting birthday party at the fire station ASAP.