Internet-exposed HMIs are a risk to water facilities, CISA warns

This Security Magazine article, published December 19, 2024, reports on a CISA advisory urging water and wastewater facilities to secure internet-exposed human-machine interfaces. Casey Ellis, founder and advisor at Bugcrowd, argues that safety-critical control systems like these should never be exposed to the internet, since any failed safeguard becomes a risk once connected.