LetsDefend
Track on RadarAcquired by Hack The Box · 2025 · news
Hands-on training platform for SOC analysts and blue team professionals
- Total raised
- —
- Employees
- 165
- Founded
- 2021
- Momentum
- —
Data updated August 2026
About
About LetsDefend
At a glance
LetsDefend is a cybersecurity company specializing in Human Risk, founded in 2021 and headquartered in Sterling, United States. It employs about 165 people and was acquired by Hack The Box in 2025.
LetsDefend is a hands-on cybersecurity training platform that provides practical learning experiences for security professionals and students. The platform offers courses, learning paths, and simulated environments focused on blue team skills, including SOC analyst training, incident response, digital forensics (DFIR), malware analysis, and SIEM engineering. The platform features a SOC environment where users can investigate real cyber incidents and practice analyzing security alerts. Training content includes phishing email analysis, web attack detection, network fundamentals, Windows fundamentals, and malware analysis. LetsDefend provides both free and paid subscription tiers, with VIP and VIP+ memberships offering access to advanced content and certificates of completion. LetsDefend serves individual learners, students (with 50% educational discounts), and enterprise teams. The platform includes learning paths aligned with industry certifications such as CompTIA CySA+ and Google Cybersecurity Certificate. Enterprise offerings include team management features, user analytics, content assignment capabilities, and business reporting tools. The platform has been acquired by Hack The Box and serves over 400,000 learners across 150+ countries. Users complete hands-on labs in simulated environments to develop practical skills in security operations, threat detection, incident response, and forensic analysis. The training approach emphasizes real-world scenarios and technical skill development for careers in security operations centers and related defensive security roles.
Momentum
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Valuation
What LetsDefend is worth
Estimated valuation
Funding
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Public markets
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Privately held
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Headcount
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Jobs
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Web traffic
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Tech stack
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M&A
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Full profile
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FAQ
Frequently asked questions about LetsDefend
When was LetsDefend founded?▾
LetsDefend was founded in 2021.
Where is LetsDefend headquartered?▾
LetsDefend is headquartered in Sterling, United States.
Is LetsDefend public or private?▾
LetsDefend is a privately-held company.
How many employees does LetsDefend have?▾
LetsDefend has approximately 165 employees.
What does LetsDefend do?▾
LetsDefend is a hands-on cybersecurity training platform that provides practical learning experiences for security professionals and students. The platform offers courses, learning paths, and simulated environments focused on blue team skills, including SOC analyst training, incident response, digit…
