Quantum networks are advanced communication systems that use the principles of quantum mechanics to transmit information securely. Unlike traditional networks, which rely on classical bits, quantum networks use quantum bits, or qubits, that can exist in multiple states simultaneously. This allows for faster and more secure data transfer, as any attempt to intercept the information would disturb the qubits and alert the sender and receiver. These networks have the potential to revolutionize fields such as cryptography and telecommunications. By enabling secure communication channels, quantum networks can protect sensitive information from eavesdropping. Researchers are actively working on developing and implementing these networks to enhance global communication security.