The worm, called ADB.Miner, installs itself as an app called "Test" under the package name "com.google.time.timer". Once it's infected a device, it eats up resources mining cryptocurrency -- devices will become slow, video playback will stop abruptly and a notification saying "Test" with the green Android robot icon will appear randomly on screen. If you've never played around with your Fire TV's developer options (which are off by default), you'll be safe from the virus. If, however, you've allowed ADB debugging or apps from unknown sources, your device is at risk -- switch both to off. If you suspect you've...