1. Don't ever EVER open an attachment or click on a link if it doesn't look "right." Pay attention. For example, the ones we've seen recently look like it came from someone on the list (it did) but you likely don't know the name in the subject line, you aren't expecting a link to be sent to you, there is no other message, and the link is something odd and that you never heard of. (Extra tech tip: generally you can "hover over" a link and a "tooltip" will appear showing you whether the link actually even matches the text you can read.)
2. When in doubt, call the person who sent it. If they didn't knowingly send it, it could be their computer has been infected with a program that sent out similar messages to everyone in their address book. Sometimes these will show up in their "Sent" box.
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