I had something weird happen today. I received an e-mail in my .mac mail account from my exact user name, only it was from aim.com instead of mac.com. I've had this happen before at my work address, so I didn't think much of it. But I noticed the other recipients of this e-mail were people I had e-mailed before or who I had received e-mail from (but not necessarily in my Contacts). So my mom and some friends also received this junk mail. I asked the IT guy at work and he told me it was spyware. I downloaded the MacScan demo and it found some tracking cookies. Is that enough to take a list of my e-mail recipients and start sending them spam? Yesterday I downloaded and installed Firefox and the Download Helper add-on. Could I have gotten it from either of these? Any advice other than running MacScan? Is this something I should be worried about? I've been using Macs for nine years and have never had this type of trouble (or any really) before.