The Android Security team has been very hard at's one user-visible feature that I'm particularly excited about:

Expanding Google Play Security Protections

Keeping our users’ information safe and secure is a top priority. We automatically scan Google Play to block and remove harmful apps. Now, with Jelly Bean Android 4.2 devices that have Google Play installed have the option of using Google as an application verifier. We will check for potentially harmful applications no matter where you are installing them from. So, if you install applications from unknown sources like the web or a third party app store, this free service will provide you with another layer of security. Learn more at
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