This chapter explores the implementation and some practical applications of multiscroll chaotic attractors. It introduces digital circuit design and FPGA-based systems for generating attractors, along with their application in secure communication using chaotic phase shift keying (CPSK)Chaotic Phase Shift Keying (CPSK) and M-synchronization techniques. Moreover, the chapter discusses unidirectional synchronization of coupled chaotic systems, control strategies for multiscroll Chua’s circuits, and the modeling of chaotic circuits using recurrent neural networks. Additionally, it proposes a true random bit generator (TRBG)True Random Bit Generator (TRBG) based on chaotic dynamics, highlighting the role of chaotic systems in secure communication and cryptographic applications. These contributions emphasize the versatility and potential of multiscroll chaotic attractors in engineering and information security applications.