Zenprise’s analysis of Zencloud mobile device management (MDM) users found that Angry Birds and Facebook are the biggest mobile app concerns. Ironically, companies are much less likely to block cloud storage apps such as Dropbox and Box.net. Only 29 percent of devices under management require users to have a passcode to operate their mobile devices. Europeans are much more likely to have iOS devices than North American firms, the Zenprise study found. Only 2 percent of mobile devices forced to use sophisticated MDM policies such as certificate-based authentication.”]