Somebady used my Hotmail Account to spam?

[SmittySr]

My wife has had some one use her email to spam her entire address book. It seems like they used her web based email to do this, but I am not sure. I have Norton Internet Security 2010 and it did not find anything during its full system scan. I also scanned with Malware bytes, and SuperAntiSpyware free edition using the preferences mention in this forum. All these programs uncovered were tracking cookies. Should I be worried about my Windows Live email client or is this a web based email issue. What measures should I take to ensure this doesn't happen again.

[harry 48]

a friend had the same problem i did all the scans for her and i was told all you can do is change the e-mail name

e.g + another to a.n.other