With no emails, instant messaging, or social networking, BlackBerry users in Europe, Africa, the Middle East and India suffered a communication's blackout on Monday.<br /><br />The service disruption could not have come at worse time for Candian firm Research in Motion or RIM - the makers of the device - which faces stiff competition for corporate users as well as regular customers. <br /><br />Last month, RIM had to deal with another disruption of its Messenger service in the Americas.<br /><br />Critics say there is growing concern that its servers are not secure enough. <br /><br />Al Jazeera's Banu Batnagar reports.
