The U.S. government is warning of an "ongoing cyber threat" facing industrial refrigeration units, after reports of cyberattacks targeting freezers and fridges in supermarkets around the world, U.S. military bases, and at least one blood bank. U.S. cybersecurity agency CISA, the FBI, and several other federal government departments warned in a joint statement on Thursday that hackers are targeting and compromising internet-connected refrigeration and cold chain monitoring systems in grocery stores and cold storage facilities. The statement said that the hacks are hitting critical infrastructure, such as the food, agriculture, transportation, and medicine-shipping industries. "If successfully exploited, the actors could...