How can quantum computing potentially revolutionize cybersecurity practices in the next decade?

Quantum computing holds the promise of transforming many domains, including cybersecurity. With its ability to perform complex calculations at speeds exponentially faster than classical computers, quantum computing could both enhance security measures and pose significant threats. On one hand, it could lead to breakthroughs in encryption methods, making data more secure. On the other, it might render current cryptographic protocols obsolete, as quantum computers could theoretically break widely-used encryption methods like RSA and ECC in a practical time frame. This raises questions about what steps should be taken now to prepare for this technological shift and how current cybersecurity strategies may need to evolve to safeguard against these upcoming changes.