Computer and Network Security in South Korea

Legal Justia.Co.,ltd

GTP,#,#,#AI,#,#Interactive legal document generation artificial intelligence,#GTP sentence generation,#legal, chatbot,#AI,#cutting edge

11 to 50 staff

Dataflare Co., Ltd

DataFlare is a technology company delivering innovative digital solutions in the maritime and port sectors. Leveraging its expertise in system integration, DataFlare provides AI-based carbon monitoring, maritime cybersecurity, and integrated system services. Port & Ship Carbon Monitoring A non-intrusive AI platform that uses AIS, weather, and dispersion data to monitor real-time carbon and air pollutant emissions from ships without onboard equipment. Maritime Cybersecurity Enhances cyber resilience in the maritime industry through asset identification, vulnerability assessment, and network data analysis. Also provides consulting to comply with IACS UR E26/E27 standards. System Integration Supports digital transformation by integrating IT/OT networks for various vessel types, including merchant ships, government vessels, and special-purpose ships, enabling efficient system management.

1 to 10 staff

Teruten Inc

People Looking for Treasures that will Save the World" We will make the world safer by security technology made by TERUTEN.

11 to 50 staff

Seekers Inc

Seekers Inc. Seekers develop new technology for response cyber security. We have Seekurity SIEM(Security Information and Event Management), this works for finding cyber threat from huge infrastructure. Seekurity SIEM has own analyzing algorithm and genernal engine like outher SIEM solutions. To up grade about security for global, we work with our technologies.

11 to 50 staff

Keydari I&c Co., Ltd

Keydari I&C Co, Ltd. is the market leader of Hardware-based Keyboard Security Solutions with its own patent technologies. Keydari I&C has designed & developed the world’s first ASIC-based Keyboard Security Product, called “KeydariUSB”. World’s first and patented “KeydariUSB” protects critical & sensitive privacy information entered from the keyboard such as User ID, Password, Social Security Number, Bank Account Number, etc. “KeydariUSB” encrypts the keystroke data outside PC and sends the encrypted keystroke data toward PC, so no other malware or spyware can get the real keystrokes data from keyboard, even in the lowest layer of OS kernel mode driver. Even though malware or spyware can steal it, but it is just scrambled garbage data by the encryption. For more information, please visit our web site, or YouTube:

11 to 50 staff

F1 Security, Inc

51 to 200 staff

Eloicube

Eloicube, it it.

11 to 50 staff

Sands Lab

Future-Ready Technology. AI CTI, AI NDR AI, LLM

11 to 50 staff

Synaccel

SynAccel is an independent research and development initiative focused on cybersecurity, cloud security, and AI security, with an emphasis on protecting autonomous, AI-driven, and distributed systems. Our work centers on applied research in AI red teaming, cloud automation, and defensive engineering. We investigate how modern cloud environments, intelligent infrastructure, and AI-enabled systems behave under adversarial pressure, and develop experimental techniques to improve their resilience against emerging threats. SynAccel’s mission is to bridge cybersecurity, cloud automation, and AI robustness by designing, prototyping, and evaluating intelligent defense mechanisms, automated detection pipelines, and adaptive response models for modern cloud and AI environments. A core focus of this work is early-stage exploration of emerging attack surfaces before they become widely operationalized. Research Focus Areas -AI security, AI red teaming, and adversarial machine learning -Cloud security engineering, automation, and autonomous infrastructure defense -Automated detection pipelines for cloud and on-prem environments -Adaptive, resilient, and self-healing defense models -Threat simulation, system behavior analysis, and experimental red/blue team research Public Research Repositories Selected research prototypes and experimental systems are maintained in public repositories: github.com/SynAccel

1 to 10 staff

Xcurenet

XCURENET has built strong expertise through the development and operation of internal information leak-prevention security solutions. Building on this know-how, we are growing into a specialized company that helps organizations control and manage both tangible and intangible risks by leveraging big data processing, operational management, and artificial intelligence technologies.

51 to 200 staff

Mardlab

MardLab focuses on finding vulnerabilities in Virtualization Products, Operating Systems. And researching advanced computer topics such as Optimization, Hardware die analysis, and Fuzzing development.

1 to 10 staff

Withnetworks

Withnetworks is building nationwide digital infrastructure from Wi-Fi to cloud and 5G network. In addition, through an integrated information protection platform, we are implementing the foundation for information protection, which is the core of the hyper-connected era. Contact Email : with@withnetworks.com

51 to 200 staff

Korea University Institute Of Computer Security Kuics

KUICS (Korea University Institute of Computer Security) is a student-led cybersecurity club under the College of Informatics at Korea University, established in January 2005. We provide a collaborative environment for students passionate about information security, offering opportunities for hands-on learning through various study groups and participation in security competitions such as CTFs. KUICS is also an active member of the intercollegiate cybersecurity alliance, Incognito, fostering meaningful collaboration and knowledge exchange with other universities.

51 to 200 staff

Secui

SECUI as a subsidiary of Samsung SDS, has led South Korea’s cybersecurity industry since tis establishment in Through continuous innovation and challenges, we are growing to be a global leading company in cybersecurity industry.

501 to 1000 staff

Cethera

CETHERA is a deep-tech startup building next-generation hardware security solutions for modern computing platforms. The company is focused on developing high-performance PCIe-based accelerator modules that operate as standalone cryptographic security engines for laptops, desktops, and server environments. By integrating advanced hardware logic directly into the system architecture, CETHERA delivers secure execution, low-latency encryption, and hardware-level threat containment without reliance on software-based methods. The startup’s flagship technology is a PCIe security accelerator designed for direct integration into consumer and enterprise computing devices. The system is engineered with a modular architecture capable of supporting high-throughput data processing, secure boot enforcement, tamper detection, and live telemetry exchange, all while maintaining minimal CPU load. The accelerator functions independently of host OS security layers and is capable of persistent cryptographic operation even under fault conditions. CETHERA is targeting a strategic position within the endpoint and edge computing markets by embedding full-stack security into silicon. The startup’s approach focuses on silicon autonomy, deterministic cryptographic behavior, efficient power draw, and compatibility with embedded controllers such as BMCs and TPMs. As part of its roadmap, CETHERA is developing pathways for ASIC-level integration directly into laptop and server motherboards to offer built-in, non-removable security modules for high-assurance computing. Founded with a mission to redefine hardware security at the chip level, CETHERA operates with a strong emphasis on custom logic design, protocol engineering, and system-level integration. The company follows rigorous design verification, thermal modeling, and system-on-chip (SoC) development practices and is preparing for future fabrication and scale-up phases.

1 to 10 staff

Rockgatecore

Rockgate Core is a premier group of cybersecurity professionals dedicated to safeguarding corporate digital assets against increasingly sophisticated cyber threats. Comprised of seasoned experts with extensive field experience, we provide comprehensive total solutions for ransomware prevention, response, and integrity-driven backup. Our flagship product, D-FORTRESS, is built on patented physical Data Diode technology and a Zero Trust architecture. It ensures absolute cyber resilience by physically blocking unauthorized access and preventing any data tampering or deletion, even in the event of a breach. Beyond providing advanced technology, we empower our clients to achieve reliable business continuity. Rockgate Core is rapidly evolving into a global technology leader, aiming to set new standards in the international IT security market. As the ultimate stronghold for your precious data, Rockgate Core stands with #CyberResilience

1 to 10 staff

Broadband Security Korea

Broadband Security is a QSA Company certified by PCI SSC and is providing the various assessment service PCI DSS, PCI PIN Security, PCI 3DS, PCI Card Production, etc.

11 to 50 staff

Inzen Co. Ltd

11 to 50 staff

수호아이오 Sooho.Io

3.[] https://recruit.sooho.io/[] https://blog.sooho.io/

11 to 50 staff

지니언스 Genians

GENIANS is the leading innovator of a human-oriented, Contextual Network Access Control platform, which orchestrates various IT technologies to optimize network security. Geni Networks ensures a healthy operational life cycle of all things by connecting people to people, people to Things, and Things to Things, while maintaining your network’s safety and security and ensuring your business success- Genian NAC Suite - Genian PC Inspector (GPI)- Genian Insights E

201 to 500 staff

아이오트러스트 Iotrust

1 - Web3!''. Web3. Web3 Wallet Wepin https://wepin.io D'CENT Wallet https://dcentwallet.com

11 to 50 staff

Zien L 지엔

ZIEN is an XIoT convergence security company that provides cutting-edge IoT security solutions to proactively prevent potential security threats in the IoT industry. With the goal of creating a safe and smart society, we strengthen security through innovative technologies and are building stable and robust environments where IoT devices are interconnected.

11 to 50 staff

엔키화이트햇 Enki Whitehat

As offensive security specialists, we preemptively address cyber threats from a hacker’s perspective. OFFen ASM / OFFen PTaaS / OFFen CAMP [?] https://blog.naver.com/enkiwhitehat X() https://x.com/ENKI_official_X

51 to 200 staff

Securion - 시큐리온

IoT AI - OnAV. AI - OnTrust.(MTD)- OnAppScan : SecuriON, an AI cybersecurity solutions company for mobile and IoT, offers the following products- OnAV An AI-powered antivirus for Android and Linux that detects malicious apps- OnTrust An anti-hacking solution and a machine learning-based Mobile Threat Defense (MTD) system- OnAppScan An automated dynamic analysis system for malicious apps. OnAV OnTrust OnAppScan https://blog.naver.com/securioncokr https://blog.securion.co.kr/

11 to 50 staff