Quantum computing is reshaping cybersecurity by providing unprecedented power to solve complex problems, making traditional encryption methods potentially vulnerable and requiring advanced solutions like Quantum Key Distribution (QKD) for secure communication. Quantum computers use qubits, which leverage superposition and entanglement to perform vast calculations at incredible speeds, enabling advancements in encryption, threat detection, and quantum-resistant algorithms. Industries like finance, healthcare, and government are already exploring quantum-safe technologies to protect sensitive data. With global initiatives from tech giants and national quantum strategies, quantum computing promises a more secure future, though extensive testing, investment, and training are needed to integrate these solutions into cybersecurity