Worked on the o3de/o3de repository to enhance network security and server stability in multiplayer environments. Focused on C++ development and network programming, the work involved implementing a targeted fix in the network input serialization process. By adding a bounds check to the NetworkInput::Serialize function, the solution mitigated out-of-memory denial-of-service risks from malicious or oversized inputs. This approach emphasized security best practices, including clear input validation and defensive coding patterns. The fix was delivered with traceable, well-documented commits, ensuring code hygiene and maintainability. Overall, the contribution strengthened the reliability and resilience of the network stack against potential security threats.