Yes, this is true. I am the one who originally received the email and confirmed this from Live chat. Below is what i sent in my group notice:
"I just confirmed from Live Chat that if you happen to receive an email from "Second Life" "firstname.lastname@example.org" asking you to click a link, do not click it, It is not from Linden Lab and it will lead you to resetting your password and your password to be stolen. "
Today, i received 3 more mails from the same email add. Same content, asking me to click a link.