There's nothing in that email that smells of scam...doesn't ask for info or money or anything else.
That's my take on the email unless, as grelber points out
"It could be a scam if there is a hotlink to click or something similar....". Without a hotlink it doesn't make sense that the netbot people would alert deniro to their presence.
Absent a hotlink, I lean toward the idea that it's a legitimate caution from the ISP. In fact, I think the last three paragraphs of deniro's note are good advice. But, these days caution is always the watchword.
On the other hand, though, can a Mac get commandeered in the manner described?
The idea of botnet is new to me too, but I learned a bit more
at this site.
