This whitepaper outlines the security architecture and practices employed by TuxCare, a company specializing in live patching and Linux security solutions. It begins with an introduction to TuxCare's background, detailing its evolution from CloudLinux and the launch of its flagship product, KernelCare Enterprise. The document describes the organization's approach to security, including product security measures, infrastructure security, and employee training protocols. It emphasizes the importance of compliance and risk management, detailing the processes for vulnerability assessments, penetration testing, and incident management. The paper also discusses the management of third-party vendors and the principles of data protection, including access control and encryption practices. Furthermore, it highlights TuxCare's commitment to legal compliance, particularly with the EU General Data Protection Regulation (GDPR). The architecture overview section explains how user data is securely processed and stored within TuxCare's infrastructure, ensuring robust protection against potential threats.