Personal data breaches cause fatal losses and reputational damage to companies. The revision of South Korea's Information Security Management System and Personal Information Protection Management System (ISMS-P) certification, set to take effect in 2026, is considered a significant change that elevates personal data protection to a central task in corporate management. The core of this revision is to clearly codify, through amendments to the Personal Information Protection Act, that CEOs bear ultimate management responsibility for personal data protection. This signifies that beyond merely obtaining formal certification, substantial investment and systematic management will become essential. According to a report by Igloo Corporation, this revision of the ISMS-P certification system aligns with the rapidly strengthening regulatory environment surrounding personal data protection. A primary objective of this revision is to further strengthen corporate responsibility while encouraging proactive expansion of security investments. Notably, the amended Personal Information Protection Act establishes grounds for punitive sanctions, allowing for fines of up to 10% of total revenue for repeated or serious violations. This could impose a significant financial burden on companies and is expected to compel a shift in management's perception of personal data protection. However, this revision is not solely focused on strengthening penalties. It adopts a balanced approach by offering incentives, such as fine reductions, to companies that proactively invest in personnel, budget, and systems for personal data protection, thereby encouraging autonomous security enhancements. This combination of "carrot and stick" is expected to encourage companies to view personal data protection as an investment rather than an expense, ultimately elevating the information security standards of Korean businesses. The ISMS-P certification is a system that evaluates whether a company systematically carries out information security and personal data protection activities. While it has primarily been perceived as the responsibility of IT departments or security teams, after the 2026 revision, it will transform into a core management task for the entire executive board, including the CEO. The essence of this revision is to clarify the CEO's management obligations and strengthen the role and responsibilities of the Chief Privacy Officer (CPO). This aims to encourage corporate executives to recognize personal data protection as a core management task and to make substantial investments and efforts, going beyond mere formal certification. With the clear definition of the CEO's legal responsibility, changes are also anticipated in the corporate governance structure itself. In the past, even when personal data breaches occurred, responsibility often fell on the relevant department or middle management; now, the chief executive will be directly accountable. This will serve as a powerful incentive for management to prioritize personal data protection in all decision-making processes, including policy formulation, budget allocation, and organizational structuring. Particularly, fines amounting to up to 10% of revenue can be a fatal financial blow not only to large corporations but also to small and medium-sized enterprises (SMEs), further highlighting the importance of proactive preventive investment. Strengthening CEO Accountability and Expanding Corporate Security Investment Strengthening the role of the Chief Privacy Officer (CPO) is also a crucial aspect of this revision. The CPO must no longer remain at a managerial level but should establish themselves as a key figure who reports directly to the CEO and formulates and executes company-wide personal data protection strategies. CPOs must be granted sufficient authority and resources, and their independent status must be guaranteed to oversee and evaluate whether personal data protection policies are actually implemented across the organization. This will enable personal data protection to become part of the corporate culture and management philosophy, going beyond mere regulatory compliance. Companies must undertake several practical preparations in response to this ISMS-P revision. First, personal data processing and management systems must be thoroughly re-evaluated. Companies must verify that appropriate security measures are in place throughout the entire lifecycle of personal data, including collection, storage, use, provision, and destruction, and identify and improve any vulnerabilities. Strengthening technical security measures such as data encryption, access control management, log recording, and monitoring of personal data is particularly essential. Strengthening information security governance is also a critical preparation. The responsibilities and roles of executives, including the CEO, must be clearly defined, and decision-making structures related to information security and personal
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