Ahn, Dayeon | Yulchon LLC

Ahn, Dayeon

Partner

T. +82-2-528-5254

dyahn@yulchon.com V-card

Practice Areas

IP & Technology Information Security Big Data & Artificial Intelligence e-Business & Fintech Digital Finance TMT(Technology · Media · Telecom) Corporate & Finance Digital Asset Center Integrated Security Operations Center Integrated TMT(Technology, Media & Telecom) Center

Introduction
News/Publications

Introduction

Dayeon Ahn is a partner in the IP & Technology Practice Group at Yulchon LLC, specializing in legal advice on data, fintech, e-commerce, e-finance, and ICT regulations, including artificial intelligence (AI). With extensive experience advising clients across various industries, she provides comprehensive legal counsel on data protection, data utilization, and regulatory matters. Additionally, she provides advice in relation to data breach incidents, regulatory investigations, and ICT compliance requirements. Leveraging her experience as in-house counsel, Ms. Ahn offers tailored, industry-specific legal solutions, bringing a deep understanding of business operations and regulatory challenges.

Education

2018-present Yonsei University Graduate School of Information
2012 Yonsei University Law School, J.D.
2006 Yonsei University, Business Administration, B.A.

Experience

2022-present Yulchon LLC
2019-2022 Chai Corporation, Head of Legal
2012-2009 Ernst & Young (EY) Han Young Accounting Firm
2006-2009 POSCO

Qualifications

2016 Certified Public Accountant , Washington
2012 Admitted to Bar , Republic of Korea

Languages

Korean, English

News/Publications

Articles/Papers

Cloud and ICT Outsourcings (South Korea), Practical Law UK, Thomson Reuters(2024) download

Legal Issues on AI-Related Data and Personal Data Protection (2023)

News/Publications

2026. 09. 16. Newsletters TMT Regulatory Briefing: Amended Personal Information Protection Act Taking Effect on September 11 — Penalty Surcharge of Up to 10% of Revenue, Strengthened CEO and CPO Responsibilities, and More 2026. 09. 16.

2026. 05. 14. Contribution Yulchon Attorneys featured in Asian Legal Business May 2026 Issue 2026. 05. 14.

2026. 05. 14. In the Press Korea report: Behind the glitz [ALB Asia May 2026] 2026. 05. 14.

2026. 04. 21. Newsletters ISMS/ISMS-P Reform in Korea: Key Changes and Implications for Compliance 2026. 04. 21.

2026. 04. 10. Newsletters Amendments to the Personal Information Protection Act, Its Enforcement Decree, and the Network Act 2026. 04. 10.

2025. 08. 12. Newsletters “Consolidated Guidelines on Personal Information Processing” Released by the PIPC 2025. 08. 12.

2024. 12. 30. Newsletters The National Assembly Passed the Framework Act on Artificial Intelligence 2024. 12. 30.

2024. 11. 21. Newsletters Highlights of the PIPC’s Guideline on Measures to Secure the Safety of Personal Information 2024. 11. 21.

2024. 11. 13. Newsletters PIPC Publishes New Guideline on the Protection and Use of Personal Visual Data for Mobile Visual Data Processing Devices 2024. 11. 13.

2024. 08. 29. Newsletters Regulatory Trends for E-commerce Platforms in South Korea 2024. 08. 29.

2024. 08. 02. Newsletters PIPC Publishes New Guideline on Processing Publicly Available Personal Information for AI Development 2024. 08. 02.

2024. 06. 25. Newsletters Introducing the Privacy Policy Evaluation System and the 2024 Evaluation Plan 2024. 06. 25.

2024. 03. 29. Newsletters Amendment to the Enforcement Decree of the Personal Information Protection Act Comes into Effect 2024. 03. 29.

2023. 09. 07. Newsletters Key Aspects and Implications of Proposed Amendment to Electronic Financial Transaction Act 2023. 09. 07.

2023. 08. 08. Newsletters Introduction to the ISMS Certification 2023. 08. 08.

2023. 06. 07. Newsletters Data Privacy Update: Proposed Amendment to the Enforcement Decree of the Personal Information Protection Act 2023. 06. 07.

2023. 03. 08. Newsletters Data Privacy Update: Major Amendment to the Personal Information Protection Act of Korea 2023. 03. 08.

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Introduction

News/Publications