[뉴스줌인] '평생 가는 CI' 개선하려면…CI2 전환·유효기간제 등 대안

South Korea's Connecting Information (CI) authentication system faces critical security vulnerabilities as data breaches mount. Industry experts debate two solutions: CI2 conversion (one-time replacement) versus validity period system (periodic renewal), with security professionals favoring the latter as a more fundamental solution that eliminates permanent identifiers and restricts long-term damage from leaked data. This shift reflects broader regulatory and security paradigm changes in personal data protection.