A personal data breach caused by hacking occurred at Daishin Securities. Daishin Securities’ headquarters in Jung-gu, Seoul, on the 28th. News1More than 4.4 million attempts to access South Korean financial firms from North Korean internet protocol addresses have been detected, amid a string of hacking attacks targeting the financial sector. Financial authorities have asked financial companies to conduct emergency security reviews. It is the first time signs of North Korean hacking have been officially confirmed since the banking sector breach earlier this month. On the 28th, securities firms, insurers and a cryptocurrency exchange were also found to have come under attack. Authorities must thoroughly investigate whether North Korea’s “scanning” probes for security gaps led to actual breaches, and prepare for further attacks.Sweeping attacks that target not only financial companies but also vendors of enterprise resource planning systems, which handle sensitive corporate information, cannot be stopped by individual companies acting alone. Because they threaten the financial system and the industrial base, the response must be framed as a matter of national security. Hacking that uses artificial intelligence is especially menacing because it rapidly identifies and exploits weak points in defense systems. There are limits to countering attacks that burrow into the weakest link with conventional measures alone, such as blocking IP addresses or applying security patches. The reality must be confronted that attacks have continued even after the financial investment industry stepped up its response following the banking breach. AI agents can lower the technical barrier to hacking and expand the speed and scope of attacks. On top of that, South Korea faces the added threat posed by North Korea. Lazarus, the North Korean hacking group, is moving nimbly enough that it immediately attempted to exploit a security vulnerability in the programming language PHP as soon as the flaw was discovered.Against hacking attacks that are evolving with AI as a weapon, the response from the government and companies remains slow. Simply repeating the pattern of holding meetings and handing down guidelines from above makes it hard to fix vulnerabilities in time. On this course, the indiscriminate leakage of personal data and corporate secrets cannot be prevented. Financial companies and other businesses must have their chief executives take responsibility for a full review of security systems and shore up weak points. The government, too, must redesign the national cybersecurity framework to counter AI-driven hacking. It should reorganize a response system scattered across ministries around a control tower, and move faster on sharing threat intelligence and mounting a joint response. Just as AI is transforming production, research and daily life, cyberattacks are also moving to a different order of magnitude. A complacent response could shake not only individual companies and financial firms but the entire country.
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