Leatherlocker is malware that attacks Android phones through apps downloaded from the Google Play Store. In 2017, Leatherlocker was detected in two Android apps: Booster & Cleaner and Wallpaper Blur HD. However, instead of encrypting files, it locks the home screen to restrict data access. Most ransomware encrypts files or wipes hard drives, but Leatherlocker steals your personal information and browser history then threatens to share it with your contacts if you don’t pay $50.