Life & fun · alternatives · 2026
24 alternatives to LetsDefend
Cyber Security training platform for blue team members
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. LetsDefend launched in 2020; newer entries below may have overtaken it.
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Curricula▲81Fun security awareness training platform for employees
2021 · huntress.com · its alternatives →
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Master cybersecurity with hands-on courses by industry experts. Learn pentesting, ethical hacking, and SOC operations through real challenges.
Jan 2026 · academy.subverted.io · its alternatives →
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Pwned Labs▲86The ultimate cybersecurity training ground for all levels
2023 · pwnedlabs.io · its alternatives →
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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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BestDefense.io▲135Pentest and patch every deploy with AI
Jun 2026 · bestdefense.io · its alternatives →
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Learn Cybersecurity By Doing
2025 · cyberdesserts.com · its alternatives →
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Strengthen your cyber defenses with personalized training
2022 · ervy.ai · 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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Plug-and-play cybersecurity automation for Blue Team
2025 · cyberpulsesolutions.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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Learn the skills cybersecurity pros actually use
May 2026 · defendtheorg.com · 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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cyber security, ethical hacking, certified courses, network
2021 · techourse.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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Cybersecurity training for SMBs. To protect valuable data.
Oct 2025 · cyberguard-smb-heroes.lovable.app · its alternatives →
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AI-assisted Case Management and Hybrid Security Platform
Jan 2026 · cyberdefensedesk.io · 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 →