The Korean government has announced a comprehensive reform of its Information Security Management System (ISMS) and ISMS-P (Personal Information & Information Security Management System) certification programs. This policy aims to address recent concerns about the effectiveness of existing certifications following cyber incidents at certified companies, including telecom and e-commerce firms. The reforms are designed to strengthen data protection and prevent personal information leaks and cyber breaches. The initiative was jointly presented by the Personal Information Protection Commission and the Ministry of Science and ICT during an economic ministers’ meeting on April 10, 2026.
The revised policy will make ISMS and ISMS-P certification mandatory for large-scale personal data handlers, such as major public system operators, telecommunications companies, identity verification agencies, and sizable private enterprises. The scope of certification will be expanded to include all digital assets connected to external networks, which could serve as attack vectors. The new system introduces a three-tiered, risk-based certification structure: Enhanced, Standard, and Simplified, with the most impactful organizations subject to the strictest standards and audits. The reforms also require technical verification, including vulnerability assessments and penetration testing, as part of the certification process.
Implementation will occur in phases. Enhanced aftercare measures, including ongoing compliance checks and stricter criteria for certification cancellation, will be enforced from the second half of 2024. The expansion of mandatory certification and the differentiated certification system are scheduled for rollout starting in 2027, with preparatory work underway in the first half of the year. The government will amend relevant enforcement ordinances, update guidelines, and secure necessary budgets to support these changes. Certification bodies and auditors will also undergo strengthened training and evaluation to ensure audit quality.
Frequently asked questions include: Who must comply with the new requirements? Large-scale data handlers, including telecom operators and major public and private organizations, are directly impacted. What happens if a certified entity suffers a major breach? Certification audits will be suspended, and if critical deficiencies are not remedied within a set period, certification may be revoked. How will ongoing compliance be monitored? The government will shift from one-time audits to continuous monitoring to ensure sustained security. For more information, contact the Personal Information Protection Commission or the Ministry of Science and ICT.
The Korean government’s reforms to ISMS and ISMS-P certification directly address recent vulnerabilities exposed by cyber incidents in certified organizations. By mandating certification for large-scale data handlers and introducing technical audits and continuous monitoring, the policy is set to significantly improve the effectiveness of data protection. The phased approach provides time for organizations to adapt, while enhanced aftercare and audit quality measures strengthen overall compliance. These steps are grounded in the need for a more resilient and trustworthy digital environment.