Quantum cryptography is a field that employs principles of quantum physics to communicate via networks. It has developed as an ability to handle the growing risks to network security, including cyber-attacks and data breaches. This age offers superior and advanced security characteristics compared to traditional cryptographic systems, making it a highly promising choice for safeguarding sensitive data. Quantum cryptography provides secure communication channels that are resistant to eavesdropping and hacking. Quantum key distribution (QKD) algorithms are utilized to generate and distribute encryption keys by using the distinct properties of quantum particles. Intercepting the keys without altering their quantum state is exceedingly difficult, requiring precise manipulation. Quantum cryptography has a notable effect on community defense by effectively mitigating the threat posed by quantum computing. Due to the rise of quantum computing, conventional encryption methods are becoming more susceptible to attacks that could compromise the security of encryption keys.