Did they want to poison the US military in time? The Pentagon is investigating a possible hack into the refrigerators. In August, refrigeration equipment failures affected at least six stores on US military bases, Reuters reports. In one case, the temperature in the refrigerators rose overnight, causing the food to spoil. The Pentagon said the Cyber Command is cooperating with other departments and law enforcement agencies in the investigation. The researchers contacted their French colleagues following a similar incident that affected more than 350 supermarkets in France in early October.