Life & fun · alternatives · 2026
24 alternatives to Subverted Academy
Master cybersecurity with hands-on courses by industry experts. Learn pentesting, ethical hacking, and SOC operations through real challenges.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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Hacksplaining teaches secure coding through interactive lessons where you exploit attacks, then learn fixes. Free. 45+ lessons covering OWASP Top 10 and AI-era threats.
2016 · hacksplaining.com · its alternatives →
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Curricula▲81Fun security awareness training platform for employees
2021 · huntress.com · its alternatives →
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Cybersecurity learning platform (Completely Free)
2025 · masterhacking.netlify.app · its alternatives →
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Playground▲198We build AI agents to find vulnerabilities in other AI agents. The playground started as an internal tool that we used to test our own offensive agent Nyx. But we realised that hacking an AI is about have as wide a distribution of attacks as possible, especially those which aren't in the distribution of the models. So we are launching playground as a platform to crowdsource agent jailbreaks. And although hacking AI is super fun and we are sure people will do it for free, we want to reward those who help us push forward the offensive frontier of AI. So we are committing $100K in prizes over…
Jul 2026 · playground.fabraix.com · its alternatives →
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Looking to get some feedback from the Hacker News community. I wrote the book with a focus on penetration testers and red teamers, but there are great examples for network admins, developers, and blue team defenders as well. You can pick up a copy for free here through May 19, 2019: https://gumroad.com/l/the_cyber_plumbers_handbook/hackernews... Please note, because it's hosted on Gumroad, it does require an email. If you don't want to give out your actual email, check out an anonymous email service. I give it away to students for free, so if you know of one that…
2019 · its alternatives →
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Anthropic and OpenAI's publicly available models are explicitly guard-railed so that they refuse offensive tasks. And their cyber-focussed models are gated for enterprises. This leaves SMEs and mid market open to major vulnerabilities. AI can be used as both an adversarial and defensive tool in the world of cyber. A worst case outcome is if only the adversaries have access. Meanwhile, most existing AI cyber tools are just wrappers. The problem is that they still have all the guardrails on from the foundation model where they will inherit its refusals. For this project we've post-trained a…
Jun 2026 · argusred.com · its alternatives →
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Hacktivate▲139A capture-the-flag game teaching real cybersecurity skills
Oct 2025 · apps.apple.com · its alternatives →
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Fabraix▲196We built Adversarial Cost to Exploit (ACE), a benchmark that measures the token expenditure an autonomous adversary must invest to breach an LLM agent. Instead of binary pass/fail, ACE quantifies adversarial effort in dollars, enabling game-theoretic analysis of when an attack is economically rational. We tested six budget-tier models (Gemini Flash-Lite, DeepSeek v3.2, Mistral Small 4, Grok 4.1 Fast, GPT-5.4 Nano, Claude Haiku 4.5) with identical agent configs and an autonomous red-teaming attacker. Haiku 4.5 was an order of magnitude harder to break than every other model; $10.21 mean…
May 2026 · fabraix.com · its alternatives →
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Learn the skills cybersecurity pros actually use
May 2026 · defendtheorg.com · its alternatives →
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Pentest List▲61Discover the best penetration testing tools, security resources, and ethical hacking content. Community-driven platform for cybersecurity professionals.
2024 · pentestlist.com · its alternatives →
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CertGames▲14Gamified cybersecurity training & certification prep
2025 · certgames.com · its alternatives →
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Master cybersecurity through engaging quizzes
2025 · cyberquizpro.com · its alternatives →
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Hacker101 is a free class for web security. Whether you’re a programmer with an interest in bug bounties or a seasoned security professional, Hacker101 has something to teach you.
2018 · hacker101.com · its alternatives →
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Web security training with AI tutor & ML detection
Jun 2026 · web-security-platform.up.railway.app · its alternatives →
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We build runtime security for AI agents. The playground started as an internal tool that we used to test our own guardrails. But we kept finding the same types of vulnerabilities because we think about attacks a certain way. At some point you need people who don't think like you. So we open-sourced it. Each challenge is a live agent with real tools and a published system prompt. Whenever a challenge is over, the full winning conversation transcript and guardrail logs get documented publicly. Building the general-purpose agent itself was probably the most fun part. Getting it to reliably use…
Mar 2026 · github.com · its alternatives →
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Kontra is an Application Security Training platform built for modern development teams.
2020 · application.security · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →