The Cybersecurity & Infrastructure Security Agency (CISA) issued an alert on July 30 regarding a significant increase in cyber threat actors targeting programmable logic controllers (PLCs) in the water/wastewater sector.

In this episode of Control Intelligence, Control Design’s longest standing columnist, automation industry veteran Jeremy Pollard, spoke with Mike Bacidore about the vulnerabilities of PLCs; the evolution of their connectivity to the Internet; the use of virtual private networks (VPNs) and gateways; and what machine builders can learn from this to keep industrial equipment secure.