ESET researchers analysed the first file-encrypting Trojan to demand a ransom from Android users it was anticipated. The malware Android/Simplocker seems at present to be a proof-of-concept but it’s only a matter of time before its ready for mass release. Most of these threats can be avoided by sensible use of your device. The biggest problem for consumers is the enormous number of old phones running Android that are still in use, for which the operators will not release a new version which makes them more vulnerable.”]
Source: https://informationsecuritybuzz.com/news/android-threats-how-to-keep-your-mobile-safe/