This message self destructs in 5 seconds. The phrase seems to be from a movie, like Mission Impossible, but it does describe the Wickr app launched last year for iOS and now comes to Android.
The Wickr developer is based in San Francisco, and has just launched the Android version of the app, which was developed to increase the security level of messaging between users. The app works similar to WhatsApp or Snapchat, allowing you to exchange messages with users who also have the app installed on the device. It uses the internet to send messages and, unlike WhatsApp, does not require a phone number to work, and it is even possible to send messages anonymously. In addition to messaging, the app allows you to send photos and videos that self-destruct after a certain time, which can be from a few seconds to up to 5 days.