South Korean Authorities Investigate Wave of Cyberattacks Affecting Multiple Major Financial Institutions

Shinhan Bank said information attached to loan applications for about 25,000 customers—including names, phone numbers and annual income—was leaked. Hana Bank reported information for 89 customers was exposed, while KB Kookmin Bank said 99 customers and 20 current or former employees were affected.
South Korea’s National Investigation Office formed a 28-member team to investigate the attacks; authorities were also considering referring the case to the Serious Crimes Investigation Unit, which handles attacks on critical government facilities and financial infrastructure.
On October 4, Financial Services Commission Chairman Lee Eog-weon convened an emergency meeting with financial industry associations, regulators and affected organizations, urging the sector to respond with the highest level of vigilance.
President Lee instructed his cabinet to establish what had happened “swiftly and clearly” and to deploy personnel and resources to minimize the damage.
South Korea is investigating cyberattacks that exposed customer data at more than seven financial institutions, affecting over 68,000 people Financial Services Commission. President Lee Jae-myung warned that artificial intelligence may have been used in the hacks, potentially making sophisticated attacks easier for people without specialized skills France24.
A government official said it was highly likely that the open-source tool Artex AI was used in the attacks KEDglobal. Officials cautioned that identifying the tool does not reveal who carried out the hacks or indicate Chinese involvement. South Korea's National Investigation Office formed a 28-member team to probe the breaches MLEX.
Shinhan Bank reported that information attached to loan applications for about 25,000 customers was leaked, including names, phone numbers and annual income KEDglobal. Hana Bank said information for 89 customers was exposed. KB Kookmin Bank reported 99 customers and 20 current or former employees were affected IJR.
President Lee Jae-myung stated that signs point to AI being used in the attacks, raising concern about how the technology could empower less-skilled attackers Firstpost. He warned that artificial intelligence makes sophisticated hacking easier for people without specialized technical knowledge. Officials identified the open-source tool Artex AI as likely used, though they stressed this does not reveal who executed the attacks KEDglobal.
South Korea's National Investigation Office formed a 28-member team to investigate the breaches MLEX. Authorities are also considering referring the case to the Serious Crimes Investigation Unit, which handles attacks on critical government facilities and financial infrastructure. On October 4, Financial Services Commission Chairman Lee Eog-weon held an emergency meeting with financial regulators and affected institutions IJR.
President Lee instructed his cabinet to determine what happened "swiftly and clearly" and to deploy personnel and resources to minimize additional damage IJR. The Financial Services Commission urged the banking sector to respond with the highest level of vigilance as the investigation continues KEDglobal.
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