ACI Learning Skill Labs vs Hack This Site: 2026 Comparison
ACI Learning Skill Labs is a commercial cyber range training tool by ACI Learning. Hack This Site is a free cyber range training tool. Compare features, ratings, integrations, and community reviews side by side to find the best cyber range training fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Academic programs and corporate training teams need ACI Learning Skill Labs because it actually lets students break things hands-on instead of watching videos, which is the only way network and security fundamentals stick. The CollegePro sets align with real course calendars across years 1-2, and auto-grading cuts instructor overhead on repetitive validation work. This is built for schools and training departments, not for security operations teams looking to upskill existing staff on incident response or threat hunting; if your goal is certifications and foundational competency, this works; if you need role-specific depth for security engineers already in the field, look elsewhere.
Security teams building internal red teams or hiring junior penetration testers need Hack This Site to establish baseline hacking skills without legal risk or infrastructure costs. The platform hosts 18+ progressively difficult challenges covering web vulnerabilities, cryptography, and network attacks, all in a sandboxed environment where failure carries zero consequences. Skip this if your team needs hands-on labs for cloud-native or infrastructure-as-code exploitation; Hack This Site prioritizes foundational web attack mechanics over modern deployment architectures.
