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Alternatives

Products that do what SikkerGuard does

A free guardian that blocks malicious IPs at the kernel.

  1. 1EB
  2. 2
    Trueguard368

    Stop fake user signups

    2025

  3. 3AW

    Time to announce Noisy Sockets Shell, the first in a series of WireGuard powered applications I'm working on. Noisy Sockets Shell is an SSH replacement that uses WireGuard for authentication and encryption, and WebSockets for communication. CLI and browser client available.

    2024 · github.com

  4. 4
    Warestack444

    Agentic guardrails for safe releases

    2025

  5. 5

    Your own privacy protection center

    2022

  6. 6TL

    Hi HN, I spent the past year building this in my spare time because I got tired of enterprise security tools that cost $50K/year and don't understand Linux. TheProtector is a comprehensive security monitoring tool that actually runs on the systems we use (Linux) instead of being a Windows-first afterthought. Built it entirely on a $500 laptop because I believe good security shouldn't require unlimited budgets. Features: - Real-time process, network, and file monitoring - YARA malware detection with custom rules - eBPF kernel monitoring (when available) - Behavioral baseline…

    2025 · github.com

  7. 7
    NFT Guard236

    Protect yourself from fake NFTs and crypto scams

    2022

  8. 8
    Keezel133

    Portable WiFi solution that unblocks content worldwide

    2016

  9. 9

    Free IP reputation service powered by honeypot data

    Feb 2026 · sikkerapi.com

  10. 10

    Ultimate iOS system-wide ad blocking and privacy protection

    2018

  11. 11

    A VPN service by online privacy experts

    2022

  12. 12DO
  13. 13DO

    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

  14. 14

    Check your customers on international sanction lists

    2022

  15. 15LV

    Hello HN! We've been working on a new hypervisor https://kwarantine.xyz that can run strongly isolated containers. This is still a WIP, but we wanted to give the community an idea about our approach, its benefits, and various use cases it unlocks. Today, VMs are used to host containers, and make up for the lack of strong security as well as kernel isolation in containers. This work adds this missing security piece in containers. We plan on launching a free private beta soon. Meanwhile, we'd deeply appreciate any feedback, and happy to answer any questions here or on our slack…

    2021

  16. 16

    Open-source security monitoring for MCP servers

    Oct 2025

  17. 17TY

    Hi HN, Some misbehaving networks drop WireGuard packets either by accident or on purpose. Commonly the latter is done with simple DPI rules that block the handshake initiation [1], but it could be applied to other message types as well. We thought it would be great if there was tool for folks to use as a quick litmus test to see if this happening for them, without having to configure a client to send data through a random, functional WireGuard tunnel to an untrusted remote host. So we built probe.sh. How it works: - The probe.sh web app is an Elixir Phoenix app that spawns a few gen_udp…

    2024 · probe.sh

  18. 18

    Porn Blocker, Adult Content Blocker, Safe Browsing

    Jul 2026 · blockguardnet.com

  19. 19

    Fast, modern, secure VPN tunnel

    2018

  20. 20AC

    Hi everyone! k8s-insider is a CLI tool to manage VPN networks and access Kubernetes workload and service resources directly through a WireGuard tunnel. It started as a simple Helm chart with a linuxserver/wireguard-like container image but, possibly due to my neurodivergence getting the better of me, evolved into a toolbox that, depending on the cluster configuration, can more or less automagically configure multiple networks with dynamic IP assignments and netpol-limited access to the cluster. I’ve found it to be a perfect middle ground between juggling multiple port-forwards and…

    2023 · github.com

  21. 21AF
  22. 22CA
  23. 23

    Open source scanner for cross-tenant AI-agent security bugs

    13d ago · github.com

  24. 24MA

    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

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