South Korea warns artificial intelligence may have driven bank cyberattacks

Update Oct 6: France 24 reports that US payroll data shows young workers' jobs are the most affected by artificial intelligence. France 24.

Update Oct 6: South Korea has warned that artificial intelligence may have been used in hacking attacks on banks, according to a Yahoo News Singapore report published on October 6, 2026. Yahoo News Singapore.

South Korea investigates financial sector cyberattacks after president warns artificial intelligence may have been used in software vulnerability exploits.

In 30 seconds South Korean police have opened an investigation into customer data breaches at more than seven financial institutions. The president says there are signs that artificial intelligence was used in some of the attacks, and officials say an open-source security testing tool called Artex AI was highly likely involved.

What happened

Over the past week, more than seven financial institutions in South Korea, including some of the country's biggest banks, reported customer data breaches. According to the Financial Services Commission, more than 68,000 people have been affected, as France 24 reported. President Lee Jae Myung told a cabinet meeting on Tuesday that there were signs artificial intelligence was used in some of the attacks, causing considerable concern and anxiety among the public.

Shinhan Bank, one of the hacked institutions, said information attached to loan applications for about 25,000 customers had leaked, including names, phone numbers and annual income. Police said the investigation was launched at the president's urging. A government official told AFP it was "highly likely" that Artex AI, an open-source security testing tool believed to be a Chinese AI system, was used in the attacks.

We have now reached a point where AI can make hacking easy for even those without special skills.

Lee Jae Myung, South Korean President

Why it matters

The ability of AI systems to find previously unknown software vulnerabilities, and to use them against banks, companies or government infrastructure, is in the global spotlight as leading labs release ever-more advanced models. Lee warned that hacking methods are growing more sophisticated while the scope of damage spreads across all areas on a scale hard to compare with the past. Neighbouring Japan has also seen leaks: at least three companies reported them in recent days, and 10 more said data may have been compromised.

Officials were careful on attribution. Using a tool believed to be Chinese does not mean the attackers were Chinese, and Park Sang-won, head of the Financial Security Institute, said it is impossible to identify an attacker from an IP address alone, because attackers can move between addresses in multiple locations. We would take the practical lesson: review patch cadence, tighten access controls, and watch internal networks for unexpected automated scanning, since the skill needed to attempt an intrusion may be falling.

What we don’t know yet

The material does not say who is behind the attacks, how the intruders got in, or how exactly AI was used. The link to Artex AI is described only as highly likely, and the investigation is only beginning. Until police publish findings, treat claims about AI-driven hacking as an open line of inquiry rather than an established fact.

Further reading: Watch France 24 on TV · Ethics and transparency.

Opinion · Missing context

The headline claim is that AI made the attacks easier, but the material only says there are signs of it and that a tool is highly likely to have been used. That is a suspicion, not a finding, and I would read it that way.

The more durable point is the president's own framing: if AI lets people without special skills do this, the pool of possible attackers grows. Defenders cannot assume that a lack of sophistication means a lack of danger.

Timeline

1. OCT 6 France 24 reports that US payroll data shows young workers' jobs are the most affected by artificial intelligence. France 24
2. OCT 6 South Korea has warned that artificial intelligence may have been used in hacking attacks on banks, according to a Yahoo News Singapore report published on October 6, 2026. Yahoo News Singapore
3. OCT 6 South Korea warns artificial intelligence may have driven bank cyberattacks

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Original sources: France 24 · Yahoo News Singapore · Yahoo · Yahoo Finance UK · France 24

Produced with AI support and reviewed by the newsroom

Byline · Chief editor · English edition · London

“A suspected AI tool is a lead, not proof, but the lowered barrier to entry is the real story.”