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Alternatives

Products that do what Defguard – open-source security army knife (Identity,MFA,VPN,Yubikey) does

  1. 1OS
  2. 2
    Trueguard368

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  3. 3AV
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    Warestack444

    Agentic guardrails for safe releases

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  5. 5

    A VPN service by online privacy experts

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  6. 6

    Open sourced application to detect security vulnerabilities.

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  7. 7

    Security for modern teams running software

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  8. 8

    Detect secrets in source code, public and private!

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  9. 9

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  10. 10
    NFT Guard236

    Protect yourself from fake NFTs and crypto scams

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  11. 11
    Secur377

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  12. 12
    Stytch314

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  13. 13
    Redential116

    A developer credential that proves what you built, NDA safe.

    Jul 2026 · redential.com

  14. 14

    Your own privacy protection center

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  15. 15
    Padlock107

    A modern, open source password manager for everyone.

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  16. 16
    Uniqkey116

    Protect every login and let users access with confidence

    2025

  17. 17OS

    I’m Rishabh and the co-founder and CTO at https://supertokens.com (YC S20). We offer open-source user authentication and we just released our user roles product for companies implementing authorization. Our users are web developers, and a prominent and adjacent pain point for our users is authorization. Developers typically implement two independent solutions for authentication and authorization. Offering AuthN and AuthZ in a single solution is something we’ve been thinking about for the last few years. Quick primer, authentication is knowing who the user is, and authorization is…

    2022

  18. 18

    Fast, modern, secure VPN tunnel

    2018

  19. 19

    Continuous security feedback for your repositories.

    2020

  20. 20DO

    I kept seeing every npm/pnpm/yarn/bun/uv supply chain post end with the same advice (set a minimum release age, turn off install scripts), and while I know cooldowns are "controversial", they do work. But even if you convince people that they should set cooldowns, it seems many don't end up following through, not sure why, maybe because it means hand-editing five config files in five formats with five different time units, or perhaps the "it won't happen to me" syndrome (or "I'll do it later, it seems complicated" where it's actually very simple). So I created a tool that…

    Jun 2026 · github.com

  21. 21

    Discover, test and secure your APIs in one platform

    Aug 2026 · apyguard.com

  22. 22MS

    Hi HN! We kept seeing devs get pwned through MCP tools in ways that security scanners completely miss. So we built an open-source analyzer to catch these attacks. Our first OSS by Mighty team. The problem: At Defcon, we saw MCP exploits with 100% success rate against Claude and Llama. Three attack patterns: Hidden Unicode in "error messages" - Paste a colleague's error into Claude, your SSH keys get exfiltrated Trusted tool updates - That database tool you've used for months? Last week's update added credential theft Tool redefinition - Malicious tool redefines "deploy to prod" to run…

    2025 · github.com

  23. 23MA

    Hi HN! We are excited to show you modguard - a Python tool we built to enforce a modular, decoupled package architecture. We built modguard to solve a recurring problem that we've experienced on software teams - code sprawl. Over time, cross-module imports would tightly couple together what used to be independent domains, and eventually create "balls of mud". This made it harder to test, and harder to make changes. Mis-use of modules which were intended to be private would then degrade performance and even cause security incidents. This would happen for a variety of reasons: - Junior…

    2024 · github.com

  24. 24BP

    Hey y'all, This is something I've been working on for a few months. It is a passkey system, similar to Apple Passkeys or a Yubikey, but it is entirely software based so you can sync credentials between devices. Passkeys (and FIDO devices in general) allow you to use public keys instead of passwords or codes to authenticate. For instance, you can just click "Approve" on the device/software instead of having to copy a code, and there are no passwords to phish. This is a new piece of tech, so website support for logins are still limited, but it can currently be used for 2FA anywhere a…

    2022 · bulwark.id

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