this post was submitted on 01 Aug 2026
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417
CISA Releases Guidance Urging Water Treatment Facilities to Disconnect Equipment From the Internet (www.privacyguides.org)
submitted 1 day ago by new_otters_raft@piefed.ca to c/technology@lemmy.world
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CISA released an urgent message warning water utilities to disconnect their logic controllers from the internet in the face of rising cyberattacks.

The hacks target internet-facing programmable logic controllers (PLCs) that control equipment and allow machinery to communicate. They monitor and control the water pressure, chemical dosing, and other factors to ensure the water is safe.

Many of the PLCs are apparently open to the internet and use default credentials, allowing a remote attacker to easily take them over.

I assume it is this CISA: https://en.wikipedia.org/wiki/Cybersecurity_and_Infrastructure_Security_Agency

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[–] Passerby6497@lemmy.world 2 points 4 hours ago

“network isn’t air gapped anymore” side of things. Now you’re having to maintain firewalls, patch firmwares, manage users, enforce good password hygiene,

This is all shit they should be doing now. They have to have a firewall to get to the net, so they should be maintaining and patching it. Managing users is standard AD shit, and password hygiene is t as easy, but setting reqs in AD for complexity goes a long way (as does not forcing passwords to rotate on an arbitrary basis).

And yes, I know it doesn't happen in a lot of places, which is why I said 'should'. Having been on the cleanup side of multiple security incidents, doing the basics is harder than you'd expect for a lot of places ....