[DM-MUG] virus warning from my ISP

[Bill Smith]

I received the following message from my ISP:
We warn you about some attacks on your e-mail account. Your computer 
may contain viruses, in order to keep your computer and e-mail account 
safe,
please, follow the instructions.

There is then an attachment to open and a security password to open the 
attachment.

Question: Do I really care inasmuch as I subscribe to .Mac and already 
have that virus protection in place? I did initially try to open the 
attachment, but got message I needed to upgrade to Stuffit Expander 
7.03, with a query if I wanted to download it. At that point I 
canceled, and decided to query my dmmug group. -- Smith