Publications

Publications

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2026

COIN: A Live, Large-scale Benchmark for Semantics-to-Input Code Reasoning

Conference on Empirical Methods in Natural Language Processing (EMNLP) 2026
AI Sec

CtxFuzz: Context-Aware Directed Fuzzing via Runtime Fuzzer-Agent Cooperation

Distinguished Paper Award
IEEE/ACM International Conference on Automated Software Engineering (ASE) 2026
AI Sec

SoK: DARPA's AI Cyber Challenge (AIxCC): Competition Design, Architectures, and Lessons Learned

Distinguished Paper Runner-up
USENIX Security Symposium (USENIX Security) 2026
AI Sec

2025

ATLANTIS: AI-driven Threat Localization, Analysis, and Triage Intelligence System

arXiv
AI Sec
Media: DARPAARPA-HSamsung NewsroomGeorgia TechOpenSSFFortune
14 more Air & Space ForcesThe RecordInfosecurity MagazineCybersecurity DiveHealthcare IT NewsNextgovMeriTalkExecutiveGovSecurity BoulevardSamMobileSammyGuruSSBCrackRSWebSolsOpen Tools

2023

2022

Watching the Watchers: Practical Video Identification Attack in LTE Networks

USENIX Security Symposium (USENIX Security) 2022
Mobile & Cellular

Revisiting Binary Code Similarity Analysis using Interpretable Feature Engineering and Lessons Learned

IEEE Transactions on Software Engineering (TSE)
Firmware & Binary AI Sec

2021

Enabling the Large-Scale Emulation of Internet of Things Firmware With Heuristic Workarounds

IEEE Security & Privacy
Firmware & Binary

BaseSpec: Comparative Analysis of Baseband Software and Cellular Specifications for L3 Protocols

Network and Distributed System Security Symposium (NDSS) 2021
Mobile & Cellular Firmware & Binary

2020

FirmAE: Towards Large-Scale Emulation of IoT Firmware for Dynamic Analysis

Annual Computer Security Applications Conference (ACSAC) 2020
Firmware & Binary
Media: CVEs & PoC Exploits

2019

Who Spent My EOS? On the (In)Security of Resource Management of EOS.IO

USENIX Workshop on Offensive Technologies (WOOT) 2019
Other

2018

Peeking over the Cellular Walled Gardens - A Method for Closed Network Diagnosis

IEEE Transactions on Mobile Computing (TMC)
Mobile & Cellular

2017

When Cellular Networks Met IPv6: Security Problems of Middleboxes in IPv6 Cellular Networks

IEEE European Symposium on Security and Privacy (EuroS&P) 2017
Mobile & Cellular

2016

Pay As You Want: Bypassing Charging System in Operational Cellular Networks

International Workshop on Information Security Applications (WISA) 2016
Mobile & Cellular

Dissecting VoLTE: Exploiting Free Data Channels and Security Problems

M.S. Thesis, KAIST
Mobile & Cellular

2015

BurnFit: Analyzing and Exploiting Wearable Devices

Best Paper Award
International Workshop on Information Security Applications (WISA) 2015
Cyber-Physical & Sensor Firmware & Binary

2014

Analyzing Security of Korean USIM-based PKI Certificate Service

International Workshop on Information Security Applications (WISA) 2014
Mobile & Cellular

2013

High-speed automatic segmentation of intravascular stent struts in optical coherence tomography images

SPIE Photonics West, Biomedical Optics (BiOS) 2013
Other