There has always been a tendency among hackers to reach out for new methods of infiltration; nowadays, with the help of artificial intelligence, they become more successful. In Japan and South Korea, punishing organizations and entities like banks are facing an increasing number of cyber incidents and malicious attacks.
The reports indicate that nine South Korean banks and two large congregations are under investigation for being possibly targeted by attackers employing AI technologies. News agencies from Japan report on other companies hit by cyber attacks such as Daiwa Securities, SoftBank, and Lawson.
However, the fact that makes experts concerned is that with the help of the new technologies, the range of possible hackers has significantly widened since now it is not necessary for criminals to possess profound technical knowledge in order to commit a crime. The availability of AI enables them to find the weaknesses in organizations` systems and create scripts of cyber attacks.
Moreover, security experts disclosed the name of a potential culprit of South Korean cyber incidents whose activities were characterized by the use of AI tools including Claude Code which belongs to the group of the said technologies.
The numbers are troubling. South Korea logged 1,236 cybersecurity incidents in the first half of 2026, up 20% from the same period last year. Ransomware cases jumped 76.8%, and DDoS attacks climbed 56.7%.
Japan is seeing a similar pattern, with businesses in a range of industries continuing to be targeted.
That said, AI involvement hasn’t been confirmed in every one of these incidents.
As attackers pick up more advanced technology, organizations are under pressure to tighten their defenses. Regular vulnerability assessments, round-the-clock monitoring, employee awareness training, and quicker incident response are all becoming more important.
These cases are one more reminder that AI, for all its benefits, can also open new doors for cybercriminals.
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