Why isn't the brand of cooler or cooler-controller being named?
Was it a password break or an open admin console or SNMP or what?
In the attack on French supermarkets a few weeks ago, hackers pirated controllers mostly supplied by the Danish company Danfoss.
In France I believe that the password on the monitoring software, or the controllers, was updated daily. The date was somehow used as the new password, or as an input to the password sequence. So rolling the passwords didn't do anything when the attackers are aware of the "algorithm".
The BBC names (and quotes) Sabcobel as one of the manufacturers.
https://cert.cyber.gouv.fr/alerte/CERTFR-2026-ALE-012/
The real issue is geniuses in food stores connecting to the open internet systems with 100K+ EUR of products exposed.
Remember, the 'S' in 'IoT' stands for Security.