US cyber defence agency warns of water attacks after Minnesota targeted
Summary
A US cyber defense agency warns that hackers are increasingly targeting water and wastewater systems by taking control of the computers that run them. Recently, over 30 water systems in Minnesota faced a coordinated cyberattack, causing some services to be disrupted and leading to boil water notices.Key Facts
- The Cybersecurity and Infrastructure Security Agency (CISA) reports more cyberattacks on automated water control systems.
- Hackers change passwords on programmable logic controllers (PLCs) to lock out operators.
- Minnesota experienced coordinated cyberattacks affecting more than 30 community water systems.
- Investigators are looking into whether Iran may be behind the Minnesota attacks, but this is not confirmed.
- Water and wastewater systems across the US are vulnerable, with over 152,000 drinking water systems and 16,000 wastewater plants.
- Some Minnesota systems had to be run manually due to remote control being compromised.
- US federal agencies previously warned about foreign cyber threats, including those linked to Iran, targeting water system technology.
- CISA has issued guidance on protecting devices made by Rockwell Automation and other manufacturers from such cyber threats.
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