As noted, Modicon PLCs are extremely popular and widely used around the world.

Source: https://mid-east.info/forescouts-vedere-labs-releases-new-report-on-deep-lateral-movement-in-ot-networks/

It is not known if additional cyber activities deeper into these PLCs or related control networks and components were intended or achieved."

Source: https://www.nextgov.com/cybersecurity/2023/12/cisa-fbi-warn-iran-backed-infrastructure-hacks/392452/

They said organizations should create strong backups of the logic and configurations of PLCs to enable fast recovery.

Source: https://www.scmagazine.com/news/cyber-av3ngers-gang-hacks-industrial-controllers-across-multiple-us-states