South Korea\'s National Intelligence Service and other agencies warned of hacking emails and watering-hole attacks led by state-backed hacking groups. They said attackers send phishing emails disguised as resumes or job offers, or hack legitimate websites to spread malware. Victims can be infected simply by visiting a compromised site, sometimes by exploiting vulnerabilities in outdated security software. Authorities warned corporate 피해 could include theft of internal documents and customer data and urged reporting suspected cases. Some reports may qualify for rewards.

South Korea\'s Postal Service Agency said cases have been confirmed of phishing emails impersonating the agency and urged the public to take special care. It said emails sent under names such as the \"Korea Postal Service Agency Delivery Management Team\" direct recipients to an external phishing site designed to look official and attempt to steal personal data and induce payments. The agency said post offices do not request address changes or payments by email.