<p>Blackberry Ltd. said more than 10 million people signed up for the BlackBerry Messenger service (BBM) in the first 24 hours after its release on Monday for non-BlackBerry users. The company says it is processing new users at a rate of 500,000 an hour, with millions more queued up.</p><p>"We have absolutely incredible demand we're trying to manage," BlackBerry spokesman Jeff Gadway said. "We're off to a really good start."</p><p>What makes BBM different from regular SMS? For one, the application encrypts data traffic in transit between the BlackBerry Server and BlackBerry devices automatically.</p><p>Here is a step-by-step guide through the complicated infrastructure of sending and receiving a BBM. Read the full story.How Blackberry Messenger Works</p><p><a href="http://www.theglobeandmail.com/technology/why-is-bbm-so-successful-look-to-its-technology/article15042079/">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.thehindubusinessline.com/features/weekend-life/the-messaging-maelstrom/article5268956.ece">The messaging maelstrom</a> (Hindu Business Line)</p><p><a href="http://asia.cnet.com/its-so-lonely-using-blackberry-messenger-for-android-62222771.htm">It&#039;s so lonely using Blackberry Messenger for Android</a> (CNET)</p><p><a href="http://techcrunch.com/2013/10/23/blackbery-buries-good-news/">BlackBerry&#039;s Bad Timing Buries Its Own Flicker Of Good News On BBM Android ...</a> (TechCrunch)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=d19An1UucPoiFkMFD8gmPMER5qAuM&ned=us">209 additional articles.</a></p>