1. Mobile apps from trusted brands are safe.
How does one really know what a given app might be doing? It’s almost impossible to find out exactly what information a given app might access. Fake and malicious versions of popular apps are quite common. Don’t think that approval by and residence in an official app store provides any form of assurance against malware or other security dangers.
All of this calls into question exactly what, in fact, a “trusted” brand might be. While there’s no absolute defense here, mobile application management software coupled with mobile content management forms the basis of a good strategy. Educating users to be careful as to what and where they download also helps.