What to know

• Freezers and cold-storage rooms at several hundred stores overheated overnight from October 11 to 12, causing tons of merchandise losses. The vulnerability, linked to software made by the Danish company Danfoss, has been identified. France’s cybercrime office...S1
• Refrigerators in hundreds of French supermarkets suddenly began heating up, spoiling fresh and frozen goods and forcing retailers to dump food — the result, major chains say, of a cyberattack that has reignited fears about vulnerabilities in the country’s food...S2