Ampyx Cyber Blog
The Intersection of Regulation & Resilience
Cyber on Tap, Part Two: New York's Water Cybersecurity Regulation Is Now in Force
New York's Appendix 5-E cybersecurity regulation for public water systems took effect March 11, 2026, making it the first mandatory, enforceable water cybersecurity framework in the country. This post covers who is in scope, what is required, when it is due, and what resources are available to help. It also examines what New York's action means in the context of a federal policy environment that is actively stepping back from sector-specific cybersecurity regulation.
Cyber on Tap: NY's Water Utilities Face New Cyber Rulebook
New York has proposed the first mandatory cybersecurity regulation for water and wastewater systems, targeting utilities serving over 3,300 people. With requirements for vulnerability assessments, incident reporting, and executive oversight, this rule signals a shift toward enforceable cyber resilience and other states may soon follow.