Earlier this week, pranksters hacked into multiple TV stations' Emergency Alert Systems (EAS) and sent out a warning of a "zombie attack." Originating with KRTV-TV/Great Falls, MT, the message later appeared on three stations in Marquette, MI and later, when CHR WIZM/Lacrosse, WI played audio of the instance, the EAS tones caused the same warning to be sent out again.
Following all of this, the FCC is now urging radio and TV stations to update and change their EAS passwords to prevent any further instances. The FCC stated that stations should "take immediate action to secure their CAP EAS equipment, including resetting passwords, and ensuring CAP EAS equipment is secured behind properly configured firewalls and other defensive measures. All CAP EAS equipment manufacturer models are included in this advisory."