Cyber criminals targeting Smartphones with a special piece of malicious software that locks up the devices until the victims pay a ransom to get the keys to unlock the phone. Ransomware typically targets users’ personal computers and has become a profitable way for cyber criminals to earn money. Android version also displays a message to threaten the user with arrest or prosecution because child pornography or other objectionable material has been found on the device. Users are advised to treat unrecognized applications from third-party sources with extreme caution and download applications from trusted App Stores.
Source: https://thehackernews.com/2014/05/police-ransomware-malware-targeting.html