Spam that seemingly emanates from Apple is making the rounds with the aim of tricking users into handing over their IDs and passwords, researchers at anti-virus firm Trend Micro said in a blog post Monday. The messages, which appear to have been sent from "do_not_reply@itunes.com," inform users about a change to their Apple account information and direct them to click on a link to review and update their security settings. However, that link brings users to a page that mirrors the legitimate Apple site, but is actually a phishing page attempting to harvest user credentials.