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        • - TAP OTAC
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    • OTAC Solutions
      • OT Auth
        • - OTAC Trusted Access Gateway (TAG)
        • - Endpoint OTAC
        • - OTAC Auth MFA
      • Fin Auth
        • - TAP OTAC
        • - OTAC Holderless Card
        • - OTAC Dynamic Token
      • IoT Auth
        • - IoT Auth Platform OTAC
        • - Smart Building OTAC
        • - HomeNet OTAC
        • - Connected Car OTAC
        • - Drone OTAC
      • Access Auth
        • - Identity & Access Management OTAC
    • FIDO & mOTP Solutions
      • swIDch Auth
        • - swIDch Auth Package
        • - swIDch Auth SDK
  • 적용사례
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KOREAN / ENGLISH
SSenStone
  • About Us
  • Technology
    • OTAC
    • FIDO
  • Solutions
    • OTAC Solutions
      • OT Auth
        • - OTAC Trusted Access Gateway (TAG)
        • - Endpoint OTAC
        • - OTAC auth - MFA for PLCnext
      • Fin Auth
        • - TAP OTAC
        • - OTAC Holderless Card
        • - OTAC Dynamic Token
      • IoT Auth
        • - IoT Auth Platform OTAC
        • - Smart Building OTAC
        • - HomeNet OTAC
        • - Connected Car OTAC
        • - Drone OTAC
      • Access Auth
        • - Identity&Access Management OTAC
    • FIDO & mOTP Solutions
      • swIDch Auth
        • - swIDch Auth Package
        • - swIDch Auth SDK
  • Case Studies
    • Case Studies
      • Toss Bank
      • Kakao
      • A-Card Bank
      • E-Stamp : Indonesia
      • Milipass
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    • News & Information
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  • About Us
  • Technology
    • OTAC
    • FIDO
  • Solutions
    • OTAC Solutions
      • OT Auth
        • - OTAC Trusted Access Gateway (TAG)
        • - Endpoint OTAC
        • - OTAC auth - MFA for PLCnext
      • Fin Auth
        • - TAP OTAC
        • - OTAC Holderless Card
        • - OTAC Dynamic Token
      • IoT Auth
        • - IoT Auth Platform OTAC
        • - Smart Building OTAC
        • - HomeNet OTAC
        • - Connected Car OTAC
        • - Drone OTAC
      • Access Auth
        • - Identity&Access Management OTAC
    • FIDO & mOTP Solutions
      • swIDch Auth
        • - swIDch Auth Package
        • - swIDch Auth SDK
  • Case Studies
    • Case Studies
      • Toss Bank
      • Kakao
      • A-Card Bank
      • E-Stamp : Indonesia
      • Milipass
  • News
    • News & Information
    • Blog
    • Video
  • Interactive Demo
  • Contact



Robust OT Authentication for Industrial Environments

SSenStone secures every access point—from PLCs, SCADAs and HMIs to control systems—delivering trusted OT authentication compliant with global standards such as IEC 62443, CRA, and NIS2.

Explore OTAC Trusted Access Gateway (TAG)

Why Operational Technology Requires a Unique Security Approach
 

▪️Direct Control over Physical Operations
        Unlike IT, OT directly controls plant machinery, where continuous uptime is essential.

▪️Severe Impact of Unplanned Downtime
      Outages cause real-world damage and critical safety risks, far beyond basic IT glitches.

▪️High-Risk Access Environments
      Shared logins and remote maintenance create critical gaps, requiring robust authentication.

 

 

Watch OT Security Strategy

Authorised Access is the Starting Point of OT Cyber Attacks

 

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 Static Passwords & Shared Accounts

 OT endpoints like PLCs, HMIs, and SCADA still rely on static, unchanged passwords, leaving them highly vulnerable to credential theft.

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 Unsecured Remote & Third-Party Access

 Maintenance connections by external engineers and vendors often originate outside the security perimeter, creating dangerous attack paths.

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Lack of Granular Identity & Access Controls

 Perimeter network security alone cannot precisely verify, monitor, or restrict exactly who is accessing which specific critical device on the plant floor.

Watch OT Attack Scenario Video

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 How Can You Protect OT Endpoints Right from the Access Stage?

 

 

🔹 Optimised for Air-Gapped Environments

Overcomes technical constraints in OT environments, such as unidirectional communication, delivering security that is immediately deployable on the plant floor.

 

 🔹 Dynamic One-Time Authentication

Replaces high-risk static passwords with dynamic OTAC (One-Time Authentication Code) that changes with every use, preventing credential reuse and theft. 

 

 🔹  Security that Ensures Operational Continuity

Seamlessly integrates into existing OT workflows without altering legacy infrastructure or system configurations, delivering user-friendly security.

 

 

Try the Demo

 Tailored OT Authentication Security for Sector-Specific Needs


 

energy_SSenStone

  Energy

Prioritises maximum grid stability for power plants and critical infrastructure. Where minor access errors can trigger national emergencies, SSenStone delivers uninterrupted OT authentication to guarantee high operational availability.

Water_SSenStone

  Water

Provides secure access control for public utility networks. Considering geographically dispersed facilities, it strictly verifies third-party vendors and field engineers to prevent unauthorised access and operational mishaps.

Manufacturing_SSenStone

  Manufacturing

Ensures zero-downtime operation across smart factories and automated production lines. Non-intrusive authentication blocks unauthorised access to PLCs and key assets without interrupting existing workflow logic.

Transport _SSenStone

  Transport

Delivers real-time access security for rail and traffic control systems. Zero-latency dynamic authentication safeguards transit infrastructure and passenger safety where precise access rights and high availability are essential.

Chemicals_SSenStone

  Chemicals

Prevents industrial accidents and protects high-risk processing plants. Because minor control errors can cause major safety hazards, precise authentication blocks unauthorised access to maximize system stability.

Food & Beverage_SSenStone

  Food & Beverage

Protects continuous production processes and strict hygiene standards. Simple yet robust authentication maintains operational continuity during frequent shift changes without interrupting daily workflow efficiency.

Request Tailored Security Consultation for Your Industry

OTAC Algorithm Analysis and Academic Verification

report_otac_surrey univ

The University of Surrey, one of the leading global cyber security companies in the UK, conducted OTAC algorithm analysis and academic verification of SSenStone. For the full text of the thesis, please visit the University of Surrey website and download the report.

 

Univ. of Surrey Website
Download the Report

New Excellent Technology (NET) Certification Acquired

NET신기술인증-removebg-preview

SSenStone has received the NET Certification from the Ministry of Trade, Industry, and Energy for its "Individual IoT Device Authentication and Transmission Data Security Technology through Unidirectional Dynamic Authentication (OTAC)."

 

NET Website
Press Release

International Common Criteria (CC) Certification Achieved

국제CC인증_엠블럼 (png)

OTACTokenV1.0, the authentication solution based on the world’s first unidirectional dynamic authentication technology, OTAC, has earned the international Common Criteria (CC) certification. For more information, please refer to the press release.

 

ITSCC Website
Press Release

OTAC for Phygital Wins IR52 Jang Yeong-sil Award

IR52 logo

SSenStone's OTAC for Phygital has been awarded the 40th-week IR52 Jang Yeong-sil Award for 2024, hosted by the Ministry of Science and ICT. For more details, please visit the official IR52 Jang Yeong-sil Award homepage or the press release.

 

IR52 Website
Press Release

Latest News

  • SSenStone CEO Awarded Top Government Honour for Information Security Contributions

  • SSenStone and MX On Secure KC and CE Certifications for 'OTAC TAG', Paving the Way for European OT Security Expansion

  • SSenStone Secures Strategic Investment from Hyundai Motor Group

SSenStone Inc.

5F, 329 Cheonho-daero Dongdaemun-gu, Seoul, Republic of Korea (02622)

T. 02-569-9668

F. 02-6455-9668

E. im@ssenstone.com

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