Best Application Security Newsletters in 2026

NewsletterFIT tracks 5 newsletters that cover Application Security as a primary topic, 4 of them with posts in the last 90 days.

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

  1. 1
    The Defender's Initiative—

    SubstackWeekly · last post 16 days ago

    Trying to make sense of the crazy cybersecurity market, and helping defenders separate the stuff that works from the stuff that doesn't.

    Likely audience: Cybersecurity researchers

  2. 2
    Waib3 Tech Insights—

    LinkedInEvery two weeks · last post 15 days ago

    Insights on AI, software development, productivity, Web3, digital transformation, and the future of engineering teams.

    Likely audience: security engineers

  3. 3
    Java & Career Growth Weekly—

    LinkedInWeekly · last post 15 days ago

    Weekly tips on Java, Full-Stack development & landing your dream tech job — by Ramesh, Founder of ShiftEduTech

    Likely audience: Java developers

  4. 4
    Cybersecurity Threat & AI—

    LinkedInWeekly · last post 10 days ago

    Cybersecurity Threat & AI delivers sharp insights on emerging cyber risks, AI innovations, and security strategies.

    Likely audience: Enterprise security operations teams

  5. 5
    Archimydes Newsletter—

    Substacklast post Mar 7, 2024

    A deep dive into engineering great software products for early stage startups.

    Likely audience: Security engineers

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