Latest / Connectivity Without Chaos - The Podcast / The Cybersecurity Threat Hiding in Your Building
Transcript
- 0:00SPEAKER_00: Okay, let's unpack this.
- 0:02SPEAKER_00: Usually when you think of a grocery store cyber attack, it's, well, it's a standard IT headache.
- 0:07SPEAKER_01: Right.
- 0:08SPEAKER_01: Like that recent Aholdel-Delhaize incident.
- 0:11SPEAKER_00: Exactly.
- 0:11SPEAKER_00: Where the stop-and-shop websites went down, but the physical stores just stayed open.
- 0:16SPEAKER_00: But our mission today,
- 0:18SPEAKER_00: pulling from a stack of recent incident reports,
- 0:20SPEAKER_00: is to look at a totally different kind of threat.
- 0:23SPEAKER_01: Yeah, a really chilling attack on actual physical infrastructure.
- 0:27SPEAKER_00: Right.
- 0:28SPEAKER_00: On the night of October 11th, Hackers didn't even touch a website.
- 0:32SPEAKER_00: They took over the refrigeration systems in over 700 French supermarkets.
- 0:37SPEAKER_01: And they forced them into a continuous defrost cycle.
- 0:41SPEAKER_00: Wait, so they basically just heated up the freezers?
- 0:43SPEAKER_01: Yeah, we're talking temperatures climbing to like 50 degrees Celsius inside those freezers.
- 0:48SPEAKER_00: Oh, wow.
- 0:49SPEAKER_00: That's hot.
- 0:51SPEAKER_01: Exactly.
- 0:52SPEAKER_01: It ruined all the meat,
- 0:53SPEAKER_01: melted frozen goods, and the overheated equipment literally started fires.
- 0:57SPEAKER_00: Seriously?
- 0:58SPEAKER_00: Fires.
- 0:59SPEAKER_01: Yeah, just two stores in the Alsace region reported something like 270,000 euros in losses.
- 1:06SPEAKER_00: My mind immediately goes to some,
- 1:07SPEAKER_00: I don't know,
- 1:08SPEAKER_00: Ocean's Eleven style cyber heist,
- 1:10SPEAKER_00: you know,
- 1:11SPEAKER_00: like nation state hackers dropping zero day exploits
- 1:15SPEAKER_00: or deploying incredibly complex malware.
- 1:18SPEAKER_01: Right.
- 1:18SPEAKER_01: It sounds like a movie.
- 1:20SPEAKER_01: But what's fascinating here is how incredibly boring the actual mechanism was.
- 1:24SPEAKER_00: Boring?
- 1:25SPEAKER_00: Really?
- 1:27SPEAKER_00: Looking at the postmortem, they didn't even send a phishing email or a ransom note.
- 1:31SPEAKER_01: No, absolutely zero custom malware was involved.
- 1:34SPEAKER_01: The attackers simply ran a scan and found these internet-connected temperature controllers.
- 1:39SPEAKER_00: Oh, okay.
- 1:40SPEAKER_01: Specifically,
- 1:41SPEAKER_01: they were older models made by Danfoss and Copeland,
- 1:44SPEAKER_01: and they were connected directly to the public internet,
- 1:47SPEAKER_01: running completely unsupported firmware.
- 1:50SPEAKER_00: But wait, why is a walk-in freezer on the public internet in the first place?
- 1:54SPEAKER_00: I mean, that just seems...
- 1:56SPEAKER_01: Crazy.
- 1:56SPEAKER_00: Crazy, yeah.
- 1:57SPEAKER_01: But it's purely for operational convenience.
- 1:59SPEAKER_01: Vendors and contractors want remote access.
- 2:02SPEAKER_00: Oh, right.
- 2:02SPEAKER_00: So they can adjust temperature thresholds without having to actually roll
- 2:05SPEAKER_00: a truck out to the physical store.
- 2:07SPEAKER_01: Exactly.
- 2:08SPEAKER_01: Which, you know,
- 2:09SPEAKER_01: makes sense on paper,
- 2:10SPEAKER_01: but it effectively moves your digital perimeter to a random box sitting behind
- 2:14SPEAKER_01: the dairy aisle.
- 2:15SPEAKER_00: Right.
- 2:15SPEAKER_01: And because this isn't just a grocery-specific technology, the threat is everywhere.
- 2:19SPEAKER_01: This is a massive operational technology crisis.
- 2:22SPEAKER_00: Because facilities teams are just constantly plugging things in, right?
- 2:26SPEAKER_01: Oh, all the time.
- 2:27SPEAKER_00: Badge readers, HVAC systems, medical infusion pumps.
- 2:31SPEAKER_00: And they do it completely under IT's radar.
- 2:33SPEAKER_01: It's basically the equivalent of having ghost employees in your office.
- 2:37SPEAKER_00: Ghost employees?
- 2:38SPEAKER_00: Yeah, like these IoT devices have a badge.
- 2:41SPEAKER_00: They have 24-7 access to the building.
- 2:43SPEAKER_00: But human resources, or in this case IT, doesn't even know they work there.
- 2:48SPEAKER_00: Nobody is managing them.
- 2:49SPEAKER_01: That is a perfect analogy.
- 2:51SPEAKER_01: And because IT is blind to them,
- 2:53SPEAKER_01: nobody is tracking their life cycles or, you know, updating their software.
- 2:56SPEAKER_01: They just sit there gathering dust and vulnerabilities.
- 2:59SPEAKER_00: So if the threat is unmonitored devices, the fix has to start with visibility, right?
- 3:04SPEAKER_00: Like strict life cycle management?
- 3:07SPEAKER_01: Absolutely.
- 3:08SPEAKER_01: You need a comprehensive physical device inventory.
- 3:11SPEAKER_01: And you actually have to enforce end-of-life hardware policies.
- 3:15SPEAKER_00: Meaning if a controller can't be patched anymore, it has to be replaced, not just forgotten.
- 3:20SPEAKER_01: Exactly.
- 3:21SPEAKER_01: And for the active ones, pulling them off the public internet stops that outside-in attack.
- 3:27SPEAKER_00: But what if a hacker breaches the network another way?
- 3:29SPEAKER_00: I mean, those controllers are still sitting ducks internally, aren't they?
- 3:33SPEAKER_01: They are, which is why you have to isolate them using network segmentation.
- 3:37SPEAKER_01: By putting these operational devices on a dedicated VLAN,
- 3:41SPEAKER_01: you're logically walling off the network at the switch level.
- 3:45SPEAKER_00: Okay, so even if an attacker compromises, say, the hallway thermostat, they just hit a dead end.
- 3:50SPEAKER_01: Right.
- 3:51SPEAKER_01: The routing tables physically won't let those packets cross over to the subnet
- 3:54SPEAKER_01: where your point of sale systems or data servers live.
- 3:57SPEAKER_00: Here's where it gets really interesting, though.
- 4:00SPEAKER_00: Because doing that manually across a whole enterprise is nearly impossible.
- 4:03SPEAKER_01: Oh, it's a complete nightmare.
- 4:05SPEAKER_00: You have to automate that mapping.
- 4:06SPEAKER_00: And that's the exact gap Provision Networks targets.
- 4:09SPEAKER_01: Yeah, exactly.
- 4:10SPEAKER_00: Instead of hunting down every single thermostat by hand,
- 4:13SPEAKER_00: they actively map out those blind spots for you.
- 4:15SPEAKER_00: They build the device inventory and they execute that essential network segmentation.
- 4:20SPEAKER_00: So one weak link doesn't bring down the whole ship.
- 4:23SPEAKER_01: It's crucial.
- 4:24SPEAKER_01: And it really raises an important question about how we prioritize our defenses.
- 4:28SPEAKER_00: How so?
- 4:28SPEAKER_01: Well, we spend so much time worrying about AI-driven threats
- 4:32SPEAKER_01: or complex nation-state phishing schemes.
- 4:35SPEAKER_01: But the vulnerabilities that cost you millions are usually
- 4:38SPEAKER_01: the ones you stopped looking at years ago.
- 4:40SPEAKER_00: The forgotten boxes humming quietly on the wall.
- 4:43SPEAKER_01: Exactly.
- 4:44SPEAKER_01: The most expensive security risks rarely look like Ocean's Eleven.
- 4:48SPEAKER_01: They look like an unpatched thermostat.
- 4:51SPEAKER_00: So, what does this all mean for you?
- 4:54SPEAKER_00: We'll leave you with this final thought to mull over.
- 4:57SPEAKER_00: If a walk-in freezer can take down a multi-million dollar retail operation
- 5:01SPEAKER_00: and start literal fires,
- 5:03SPEAKER_00: what invisible internet connected devices are quietly sitting in your own office
- 5:07SPEAKER_00: or home right now running outdated software that absolutely no one is watching?