Code red warns of fire. At Children’s National Hospital in Washington, D.C., staff have added another: code dark, for a cyberattack.

Washington, D.C.-based Children's National Hospital has implemented a code that signals staff to unplug or turn off internet-connected devices to mitigate cyberattacks, The Wall Street Journal ...

"Code Red," "Code Blue," "Code Black" -- people sometimes wonder what these terms mean, especially if they're fans of TV hospital dramas. Technically, there's no formal definition for a code, but ...