Threat Intelligence newsletters

NewsletterFIT tracks 6 newsletters that cover Threat Intelligence as a primary topic, 4 of them with posts in the last 90 days. By publicly shown subscriber count, the largest are The OSINT Newsletter (35K), THOR Collective Dispatch (3K) and Founder Catalyst (1K).

Updated Oct 30, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    The OSINT Newsletter35K subscribers

    SubstackWeekly · last post 21 days ago

    Likely audience: OSINT practitioners

  2. 2
    THOR Collective Dispatch3K subscribers

    SubstackEvery two weeks · last post 31 days ago

    Likely audience: Security researchers

  3. 3
    Founder Catalyst1K subscribers

    SubstackMonthly or less · last post 57 days ago

    Likely audience: CTOs

  4. 4
    Latest News From The District—

    LinkedInEvery two weeks · last post 16 days ago

    Likely audience: Security Leaders

  5. 5
    !!! Do not subscribe! We have moved!!14K subscribers

    Substacklast post Feb 8, 2024

    Likely audience: Cybersecurity professionals

  6. 6
    Rhythms of Research—

    Substacklast post Dec 26, 2025

    Likely audience: Incident responders

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