Felix 'FX' Lindner, founder and owner of Recurity Labs, passed away on March 1, 2026, at age 42. The security community mourns the loss of a pioneer who shaped how professionals approach technical challenges with curiosity, discipline, and unwavering integrity. For many, Lindner was more than a founder—he was a mentor, collaborator, and trusted voice in cybersecurity.

Inside Recurity Labs, Lindner established a culture that prioritized deep technical excellence over hype and careful analysis over shortcuts. He believed security work should balance technical rigor with ethical considerations, creating a company known for practical outcomes and respectful relationships. His influence extended far beyond his company, touching countless professionals through projects, teaching, and community engagement.

The team at Recurity Labs will continue operations as Lindner expressly wished, maintaining the standards of professionalism and care he instilled. They plan to honor his legacy through the kind of security work he championed—grounded in technical depth, practical impact, and long-term thinking. Messages and memories can be shared at [email protected], where they'll be collected for his family and team.