More than 200 Android mobile applications listen surreptitiously for ultrasonic beacons embedded in audio that are used to track users and serve them with targeted advertising.

More than 70 iOS apps are vulnerable to man-in-the-middle attacks where TLS connections can be intercepted and sensitive data stolen.

The Brain Test mobile malware family has once again been evicted from Google Play. Known for piggy-backing on fully functioning mobile applications, the malware’s various iterations try to root Android devices, download malicious APKs and inflate the Google Play ratings of other apps written by the same group of Chinese developers. Worse yet is Brain...