Build38 Active Hardening is a cloud-based mobile application security module that provides runtime protection for mobile apps through cryptographic individualization and device binding. The solution establishes secure connections between protected apps and a cloud server to stream security telemetry data for analysis. The platform individualizes each app instance with unique cryptographic keys to isolate threats and prevent lateral movement between users. Machine learning algorithms process real-time security telemetry data to identify patterns and threats that may not be detectable through on-device analysis alone. Active Hardening issues X.509 certificates to individual app instances, creating a PKI-certified environment for secure communications. The system monitors app launches and maintains continuous security data collection for threat detection and response. The module integrates with Build38's mobile app self-protection capabilities to provide defense against mobile security threats. Security profiles are dynamically adjusted based on AI analysis of consolidated telemetry data from all protected app instances. This approach reduces false positives and prevents unnecessary app shutdowns that could impact user experience.