Windows 10: Unauthorized use of my email address

I received this email from a friend:


Just a heads up that your email address was recently used to automatically and maliciously send an email with a web link to a malware website. It looks like it may have gone to multiple undisclosed recipients.


What do I do now?

:)

 

Unauthorized Emails from my account?

It is more than likely that your email account was hacked, either by a virus sniffing your password, or just simply hacked.

Either way, change your password on your email account. Unfortunately the damage by already be done. They already have your contact list and your email address associated with that contact list. There is nothing stopping them from sending out emails using their own SMTP servers to everyone on your contact list and claiming the emails are from your email address. They don't actually have to have access to your yahoo account or even any yahoo server to send emails to people that come from your address.

 

Unauthorized Emails from my account?

Embarrassingly, everyone on my email list received spam originating from my account, which is Yahoo based. A scan with MSE found two trojans, a Java/Rowindal.A and a Downloader:Java/OpenStream.W.

Are these the source of my unwanted email traffic? Would someone opening this email be infected with the same problems? Could there be more dangerous underlying threats.

Hell, I have quite a few high dollar clients in my list. I always treat people's addresses like they were unlisted numbers, and don't send frivolous "Hey how are ya" junk. This is mortifying.*Eek!

 

Unauthorized Emails from my account?

1. Change your password.
2. Change to Gmail.