I'll let some computer geek (that's more of a geek than me) explain this better.
1) You got the Trojan Horse virus. Most anti-virus programs will detect this. I'm using Norton Anti-Virus and it blocks viruses that people try and send ALL THE TIME - like an average of 4 a day (I get about 300 messages ED from 3 different e-mail accounts!).
2) Here's the one that I'm not sure about: I believe some can redirect a mail bomb or spam through your internet provider under your username. They either got your name from somewhere or a program created it (and it ended up being a real name??). I've received a couple of messages where I suspect this has happened to me. I get an e-mail response from someone I don't know that says "user unknown - message was undeliverable." The title of the message and person were nobody I knew.
As a safety precaution, I recommend everyone do this. All passwords are saved on your computer in cookies. When you are done surfing, go into your browser settings and "delete all cookies." I also go into my hard drive occaisionaly and make sure cookies aren't getting stored somewhere. This is a VERY simple precaution that anyone with black-market dealing as most of us have must do!
xcel