2.5 Admins

2.5 Admins 322: Internet Defrigeration

2.5 Admins

Summary

A recent hacking incident in France has raised significant concerns about the security of internet-connected appliances, particularly in supermarkets. Attackers gained access to supermarket refrigeration units, which were vulnerable due to a weak password system that changed daily based on the date. This oversight allowed hackers to raise the temperature of the fridges to 50 degrees Celsius, resulting in extensive food spoilage and fires, with one supermarket chain alone reporting damages exceeding 10 million euros in a single day.

Experts emphasize that the real issue lies in the decision to connect critical infrastructure directly to the public internet. They argue that such devices should be managed through private networks or VPNs to limit access. The discussion also highlights the inadequacies of the firmware used in these appliances, questioning why a refrigerator could be programmed to heat rather than cool. The incident serves as a cautionary tale about the importance of robust security measures and the need for better firmware management practices in the age of smart technology.

In related discussions, the podcast also addresses the challenges of managing home networking setups, particularly for new homeowners. Recommendations include using coaxial cable for internet connections and the benefits of professional installation for Ethernet cabling, as well as considerations for DNS management to ensure efficient and reliable service. The hosts encourage listeners to weigh the costs and benefits of DIY versus professional help when setting up their networks.

Show Notes

Supermarkets found out why their fridges shouldn’t be on the Internet and Samsung smart fridges broke after a firmware update, why we don’t recommend MoCA, some tips for running ethernet cables in your house, and why it’s fine to use a short TTL with your domains.

Plugs

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Biggest ZFS Misconfigurations and How to Fix Them: Part 2

News/discussion

Hackers heat French supermarket fridges, sparking fires and spoiling food

The username is admin and the password changes every day automatically to.. the current date

Freeze the Controller, Defrost the Food: Uncovering Vulnerabilities in Danfoss Refrigeration Controllers

Owners mourn spoiled food after firmware update bricks Samsung smart fridges

Free consulting

Example coax cable tester

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