Daishin Securities reports 38,490 customers' data exposed amid new cyberattack wave affecting Korean financial firms
South Korean broker Daishin Securities says a cyberattack exposed personal information for 38,490 customers; Mirae Asset Global Investments and crypto exchange Bithumb also reported separate cybersecurity incidents as authorities investigate. Security researchers previously linked a September wave of attacks to a suspected China-based hacker using an AI penetration-testing tool called Artex, though officials have not confirmed a connection to the latest breaches and regulators have called for stronger cybersecurity checks across private-sector IT systems.