The Pentagon is treating the spate of mysterious freezer malfunctions that spoiled food at military bases across the United States in August as a suspected hack, according to four officials familiar with the matter. One of the officials said the military investigators were in touch with their French counterparts about a similar cyberattack on commercial freezers that disrupted supermarkets there earlier this month. Reuters was not able to ascertain how far along the Pentagon’s investigation was or whether it had reached any conclusions about what happened or who might be responsible.