If you work in a high security kind of company, sometimes sending emails may not be secure enough for you or your bosses' tastes. It's not really paranoia about corporate espionage or something, but dealing with important documents that may mean life or death is crucial. It might sound like something out of a spy movie or TV show, but it's more practical than that in real life. Microsoft has added a few more tools to help corporations and individuals master the art of encrypted messages through the 0365 Message Encryption Viewer.
The Office 365 Message Encryption app has been around for quite some time now, but you needed to be on a desktop and have an Office 365 or at the very least, a Microsoft account to be able to view them at all. Now Microsoft is introducing some solutions so that you'll be able to access and reply to these encrypted messages even without the limitations mentioned earlier. One way is to get one-time passcodes to send to those people whom you want to see your messages. The passcode is time limited and will last for 12 hours only but it means you can view it on your own browser and on your own email.
The other is a recently-released app called 0365 Message Encryption Viewer. Not only can you view the messages that have been sent to you, but you can also reply to the OME encrypted messages right through your viewer app on your Android device. All you have to do after you install the app is click on the encrypted message from your regular email, and then choose to view it on the OME Viewer.
Your device should be running on Android 4.0 and above to be able to use this app. You can download 0365 Message Encryption Viewer from the Google Play Store for free.