The scope of cyberattacks on South Korea's financial industry has expanded, with Daishin Securities disclosing a data breach affecting over 38,000 customers. Cryptocurrency exchange Bithumb and asset manager Mirae Asset Global Investments have also confirmed security intrusions. These incidents follow a wave of cyberattacks faced by the financial sector in recent weeks, raising concerns about security vulnerabilities and prompting calls from South Korean financial regulators for stronger defenses.