Ransomware app found its way into Google Play and managed to make at least one victim. The app has since been removed by the Android team. According to security firm Check Point Software Technologies, several weeks ago they detected and quarantined an Android device that had this malware on it.
Article Link: http://news.softpedia.com/news/ransomware-app-makes-way-into-google-play-infects-user-512202.shtml