However, when examined by an experienced virus analyst the similarities become clear. It appears that whoever wrote Zotob had access to the Mytob source code, ripped out the email-spreading section, and plugged in the Microsoft exploit.

It appears that whoever wrote Zotob had access to the Mytob source code, ripped out the email-spreading section, and plugged in the Microsoft exploit. It's possible that several people have access to the Mytob source code - so it may not be the last we see of this Internet scourge.

It appears whoever wrote Zotob had access to the Mytob source code, ripped out the email-spreading section and plugged in the Microsoft exploit.

The Mytob worms have made a significant impact on the virus outbreak charts this year, so anything which may prevent future variants from being developed and released must be welcomed.

There are a tiny number of mobile-phone viruses compared to the threat on the Windows platform.

You need to decide yourself on this one. The vulnerability is a serious problem -- we've seen over 200 different exploits -- but I don't think this is a time to panic.