LY Corporation Tech-Verse 2026

AI

Beyond Intelligence to Safety: The Ultimate Guide to 'External AI Guardrails' in the AI Era

Time
1:55 - 2:25 PM JST
Language
KO

Introduction:

  1. Introduction to the shift in security paradigms, simple attack scenarios, and potential real-world threats
  2. Introduction to AI guardrails and the reasons why separate guardrails are necessary

Body: Introduction to guardrail technologies against various attack methods, sharing of actual application methods and results

  1. Prompt injection detection
  2. Text moderation
  3. Off-topic detection
  4. Person-identifiable information detection
  5. Hallucination detection

Conclusion: Summary and introduction to building secure AI services based on the presentation content

Jongwoo Han

LINE PlusApplied ML Dev

Ph.D., Korea University (2011). Worked at LG Electronics (2011–2020) and Intel Korea (2020–2021). Currently Lead, Applied ML Dev at LINE Plus (2022–present).

Hyukjae Jang

LINE PlusApplied ML Dev

He is a software engineer at LINE Plus who brings AI Guardrails and on-device ML into real services.
Recently, he has been designing, training, and deploying multilingual AI safety systems centered on Topic Control, while also building benchmarks and automated evaluation pipelines himself.
His experience spans LINE Android client development, federated learning, on-device AI, and generative AI, and these days he is especially passionate about turning “AI that works in demos” into “AI that holds up in products.".

Sooah Lee

LINE PlusApplied ML Dev

AI Software Engineer at Samsung Electronics, specializing in Coding Agent systems, LLM serving platforms, and GPU inference optimization. Previously worked at Intel Korea on Datumaro, data pruning, multimodal dataset management, and model compression. Currently AI Software Engineer at LINE Plus, driving hallucination detection for the AI Guardrail project through RAG-, NLI-, and LLM-based verification architectures, evaluation frameworks, and operational pipelines.

Younghyun Kim

LINE PlusSecurity R&D

Research Engineer at Samsung SDS (2018–2021), specializing in Privacy-Preserving Machine Learning with Homomorphic Encryption and Differential Privacy. Currently Security Research Engineer at LINE Plus (2021–present), driving security R&D across FIDO2, Device Attestation, Privacy Enhancing Technologies, and AI Guardrails.

All Sessions