The advent of Android 4.2 Jelly Bean brings new security features to the platform, features that have been required for a while to protect users from the many dangers associated with malicious apps. The new security features are built natively into Android 4.2 Jelly Bean, and the most vital of them, is in essence similar to the Bouncer feature rolled out for the Google Play store in February this year. While the Google Play store is now supposedly cleaner because this feature, Android users are still at risk when sideloading apps from other sources.

Completely opt-in, the ‘verify app’ feature can be toggled from the ‘Security’ section of Android 4.2 settings. Each time users download and sideload an app, it is sandboxed, with virtual walls put up between the app and other software on the device. A pop-up box will then ask user if they want to check the app for potentially ‘harmful behaviour.’ The device will then send information about the device to Google’s servers, and compare it with a database of known applications. 

Android 4.2 also brings a scanning feature, that detects any attempt by an app to send a text message to a known fee-collecting short code (premium number), and will alert the user. The user will have the option to then allow, or deny the app from continuing with sending.