--- title: Securing our Critical Infrastructure with Zero Trust description: Cyberattacks on critical infrastructure are rising, fueled by legacy systems and the false assumption that OT environments are safely air-gapped. Drawing on... canonical: https://daily.dev/posts/securing-our-critical-infrastructure-with-zero-trust-iowwjuret twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Securing our Critical Infrastructure with Zero Trust | daily.dev og:description: Cyberattacks on critical infrastructure are rising, fueled by legacy systems and the false assumption that OT environments are safely air-gapped. Drawing on... og:url: https://daily.dev/posts/securing-our-critical-infrastructure-with-zero-trust-iowwjuret og:image: https://api.daily.dev/og/posts/IOwwjUreT.png og:image:alt: Securing our Critical Infrastructure with Zero Trust og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Securing our Critical Infrastructure with Zero Trust **[Security Boulevard](https://daily.dev/sources/securityboulevard)** · 4 min read · 1 upvotes · 0 comments ## Summary Cyberattacks on critical infrastructure are rising, fueled by legacy systems and the false assumption that OT environments are safely air-gapped. Drawing on experience leading cybersecurity at the Department of the Interior, the author argues that Zero Trust principles must be applied to OT environments, with a focus on assuming breach, implementing microsegmentation to limit lateral movement, enforcing strong identity controls, and building containment into architecture rather than relying on patching alone. The piece also stresses that resilience is ecosystem-wide: securing only federal systems is insufficient when adversaries can achieve mission failure by targeting adjacent municipal or private infrastructure. Cross-sector collaboration and timely cyber intelligence sharing are presented as essential components of a unified national defense posture. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Zero Trust: The Foundation of Industrial Cyber Defense](https://daily.dev/posts/zero-trust-the-foundation-of-industrial-cyber-defense-avszlhajl) · Cisco · 0 upvotes · 0 comments - [Dismantle implicit trust in OT networks, CISA tells critical infrastructure operators](https://daily.dev/posts/dismantle-implicit-trust-in-ot-networks-cisa-tells-critical-infrastructure-operators-ygtpru89v) · CSO Online · 0 upvotes · 0 comments - [Closing the Identity Gaps in Critical Infrastructure Security](https://daily.dev/posts/closing-the-identity-gaps-in-critical-infrastructure-security-irguezhxd) · BleepingComputer · 0 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security), [#cyber](https://daily.dev/tags/cyber) [View this post on daily.dev](https://daily.dev/posts/securing-our-critical-infrastructure-with-zero-trust-iowwjuret) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Securing our Critical Infrastructure with Zero Trust","url":"https://daily.dev/posts/securing-our-critical-infrastructure-with-zero-trust-iowwjuret","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/securing-our-critical-infrastructure-with-zero-trust-iowwjuret"},"datePublished":"2026-02-18T17:05:30.974Z","dateModified":"2026-02-18T17:07:51.123Z","description":"Cyberattacks on critical infrastructure are rising, fueled by legacy systems and the false assumption that OT environments are safely air-gapped. 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