Best OT Security Newsletters in 2026

NewsletterFIT tracks 3 newsletters that cover OT security as a primary topic, all with posts in the last 90 days. By publicly shown subscriber count, the largest are Cyber News Network (7K).

Updated Nov 6, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    Cyber News Network7K subscribers

    SubstackSeveral times a week · last post 3 days ago

    From recent posts: Cyber News Network publishes daily threat forecasts, strategic intelligence briefings, and deep-dive articles on state-sponsored espionage, ransomware, and AI-driven cyberattacks. The publication targets security…

    Likely audience: Cybersecurity analysts

  2. 2
    the cyber brief. | Segura—

    LinkedInEvery two weeks · last post 21 days ago

    the cyber brief. | Your Privileged Access to cyber news, every two weeks

    Likely audience: IT security professionals

  3. 3
    WALLIX CyberNews—

    LinkedInEvery two weeks · last post 18 days ago

    Stay ahead of the cybersecurity landscape. Explore topics about sovereignty and the WALLIX ecosystem.

    Likely audience: IT security leaders

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