This paper describes different vulnerabilities in the infrastructure of unmanned systems. Unmanned systems and wireless communication are prone to software and hardware attacks. Security is an important issue during system design. This study shows that hardware security implementation of FPGA-based design in the unmanned system and provides a robust security design method. The use of logic encryption technique is implemented to change the value of the input signal based on the security key value. The increase in the number of bits in keys protects against different cyberattacks but it increases the complexity of the design depending on the application and the level where it is applied. This security method is implemented in the Zedboard device and is used to ensure hardware security for the application.