Over 4,400 Rockwell PLCs Exposed Online, 22 Found in Water Attack Cities
Over 4,400 Rockwell PLCs Exposed Online, 22 Found in Water Attack Cities
06 August 2026
Forescout found 22 internet-facing Rockwell Automation programmable logic controllers (PLCs) in cities hit by recent cyberattacks on US water utilities. Nineteen used the same mobile carrier network.
Its August 3 scan counted 4,407 exposed Rockwell controllers worldwide, including 2,844 in the United States, but Forescout could not confirm any were compromised. That figure counts exposed