Hack The Box Acquires LetsDefend: A New Era of Cybersecurity Training
In a significant development for the cybersecurity community, Hack The Box (HTB) has officially acquired LetsDefend, a trailblazing platform specializing in blue team skills development. This move, announced on September 16, 2025, combines the strengths of two major players in the cybersecurity training landscape and sets the stage for a comprehensive approach to skills enhancement and workforce readiness.
The Power of Gamified Learning
Hack The Box has been at the forefront of gamified cybersecurity training since its inception in 2017. Known for its engaging labs and challenges that simulate real-world scenarios, HTB helps individuals and teams master both offensive and defensive cybersecurity skills. The acquisition of LetsDefend, founded in 2021 and rapidly growing its community to over 320,000 users across 150+ countries, expands HTB’s already impressive portfolio.
By integrating LetsDefend’s strengths in hands-on Security Operations Center (SOC) simulations, HTB can now offer an even more robust suite of tools for both red teams (offensive security) and blue teams (defensive security). This collaboration fosters an immersive environment where aspiring penetration testers and SOC analysts can learn side by side, reinforcing the entire cybersecurity framework through practical experience.
Bridging the Skills Gap
As cybersecurity threats continue to evolve, organizations face mounting pressure to elevate the competency of their security teams. With the rise of artificial intelligence (AI) in cyber operations, the need for versatile, highly skilled professionals has never been more urgent. The Hack The Box and LetsDefend partnership aims to address this challenge by providing a comprehensive service that allows enterprises, governments, Managed Security Service Providers (MSSPs), and educational institutions to continuously benchmark and upskill their cyber workforce.
According to Haris Pylarinos, CEO of Hack The Box, “Today’s cyber threats demand that security professionals upskill in a holistic, predictive way.” He emphasizes that combining forces with LetsDefend enables the creation of a unified platform where cybersecurity education can thrive, mitigating risks more effectively.
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Enhanced Learning Experiences
The newly merged platform promises a seamless experience with features designed to enhance operational readiness. Integrated attack-and-defend scenarios will allow users to face real-world challenges and develop skills necessary to counteract complex threats. With enhanced learning paths and a collaborative ecosystem, learners will benefit from various instructional methods tailored to individual needs.
Gerasimos Marketos, Chief Product Officer at Hack The Box, highlights that accelerating LetsDefend’s vision with HTB’s AI capabilities transforms a virtual SOC experience into a dynamic learning environment. This innovative approach not only equips users with practical skills but positions them ahead of the curve, reflecting real-world adversarial tactics.
A Response to Rising Demand
This strategic acquisition arrives at a pivotal moment when organizations are actively seeking cohesive cybersecurity workforce development solutions. Leaders in the industry are increasingly consolidating multiple point solutions, opting for platforms that deliver measurable effectiveness across both offensive and defensive realms. In this rapidly changing landscape, the collaboration between Hack The Box and LetsDefend signifies a commitment to nurturing a skilled cyber workforce equipped to tackle emerging threats head-on.
The newly combined user base will have access to cross-platform features, promoting collaboration and interaction among community members. This integration ensures that both offensive (red team) and defensive (blue team) practitioners can participate in comprehensive events, including Capture The Flag (CTF) competitions and community meetups, enhancing collective knowledge and skills.
Expanding Community Engagement
Beyond educational offerings, Hack The Box plans to enhance community events, creating more opportunities for members to connect, share knowledge, and address current cybersecurity challenges. With a focus on gamification, the platform aims to make learning engaging and relevant, aligning with the needs of a global audience seeking to advance their careers in cybersecurity.
The combined resources of Hack The Box and LetsDefend will not only bolster individual learning but also help organizations streamline their upskilling efforts. Various lab environments will allow budding cybersecurity experts to experience scenarios involving phishing attacks, malware infections, and network intrusions in a controlled, low-risk setting.
About Hack The Box and LetsDefend
Hack The Box
Hack The Box is recognized as a top-tier cybersecurity readiness and upskilling platform, blending hands-on labs, AI-driven intelligence, and community collaboration to facilitate learning. Since its launch in 2017, HTB has garnered a global membership exceeding 3.7 million, making it a trusted resource for organizations, governments, and educational institutions. More details can be found at hackthebox.com.
LetsDefend
LetsDefend stands out as an interactive blue team upskilling platform, designed for hands-on cybersecurity defense practices. With a focus on simulating realistic cyber incidents, LetsDefend helps both aspiring and current security analysts develop job-ready skills for effective incident response. For more information, visit letsdefend.io.
This acquisition marks a pivotal step in the evolution of cybersecurity training, merging strengths to offer a holistic and immersive learning experience that promises to reshape the way organizations approach cybersecurity workforce development.
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