Professor Kim Jeong-sang of Duke University in the United States, recognized as a global authority on quantum computing, mentioned regarding the potential threat of quantum computers to financial systems that "the possibility of building a shield before the spear is completed is much greater."
In a lecture at the 48th KORCHAM Summer Forum held in Gyeongju, Professor Kim responded to a question about whether quantum computers could undermine the encryption systems of Bitcoin and other cryptocurrencies, stating this. He added, "If the encryption systems collapse, it will be an enormously great threat," but noted, "The fortunate thing is that the development of the spear that is quantum computers is slow."
Professor Kim said, "The United States has been developing encryption systems that cannot be broken even by quantum computers, known as 'quantum-resistant encryption', since 7 or 8 years ago," and added, "Even if developed, replacing existing systems will take 15 to 20 years."
Professor Kim is a representative figure in the global quantum computer market. He co-founded the quantum computing corporation IonQ, which went public on the New York Stock Exchange in 2021.
During the lecture, Professor Kim also projected that existing computer systems and quantum computers could coexist. He stated, "In a way, quantum computers can complement 10% of what existing computers can do beyond the 90% they handle," and emphasized that "research into and contemplation of hybrid computing methods is of great importance at this juncture."
When asked which quantum computer technology might emerge as the market winner, he remarked, "I can say my chances of winning are 100%. Researchers must have that level of confidence." However, he added, "What determines the winner is not technology but the market," explaining that "the moment winning applications emerge and technology is established, the winner will be decided."