this post was submitted on 01 Aug 2026
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454
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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[โ€“] Duamerthrax@lemmy.world 3 points 21 hours ago (1 children)

Some people will say it's too hard to retrofit onto legacy equipment, but all it really means is adding a secondary system on top of the legacy system. Just a sensor array that has no interaction with existing systems.

[โ€“] SanicHegehog@lemmy.world 1 points 19 hours ago* (last edited 19 hours ago)

Yup. Fancy architecture diagram:

                  One Way Radio
                   Transmitter
[Nuclear Reactor] ------------> [Internet connected receiver] -> tHe ClOUd