At least one Lyst member has been hit by the w32.badtrans.b@mm virus. See http://www.symantic.com for details, but the virus mails a copy of itself to addresses it finds in the victim's address book, using a header from an existing email to make it appear that the infected email is a reply to something you sent the victim. It also installs a Trojan that allows your keystrokes to be logged. I've had several copies of the virus over the last 12 hours, from more than one City member, and to both my FC and Lyst email addresses.
http://securityresponse.symantec.com/avcenter/venc/data/w32.badtrans.b@m m.html