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CUSTOMERS · CERTIFICATIONS

Audit-ready
evidence in six documents.

KISA, TTA, Common Criteria, government procurement, Gartner, ISO, and patents — a single page of official evidence that drops straight into government approvals and finance security audits.

  • KISA 100%APT detection
  • TTA GS Grade 112.027 s
  • CC EAL2international cert.
  • Gartner-listed1 of 40 vendors
  • CDR patentsindustry-leading portfolio
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As of April 2026 · certification status refreshed on the 1st of each month
Certifications — KISA, TTA, Common Criteria, government procurement, and more
EVIDENCE · 01

Six certificates — issuer and validity included.

Each card links to the original certificate PDF. Cite the certificate numbers as-is in security reviews and RFP responses; your account manager will send original master copies on request.

  • Valid No. 01
    Security Evaluation

    KISA APT Evaluation

    First vendor to hit 100% on the government-led APT evaluation — a test set that includes obfuscation and sandbox-bypass techniques.

    100% detection rate
    Award date
    2019
    Validity
    Standing — renewed on re-evaluation
    Product
    SLF (SLF450)
    Korea Internet & Security Agency (KISA)
  • Valid No. 02
    Quality Standard

    TTA GS Grade 1

    12.027s average response across 200,000 real-file tests — the highest quality grade issued by an accredited testing body.

    12.027 s average · 200,000 files
    Product
    MARS V2 engine
    Test scale
    200,000 real files
    Telecommunications Technology Association (TTA)
  • Re-certifying No. 03
    International

    Common Criteria (CC)

    Common Criteria evaluation supporting national and public procurement requirements. Security functions and development processes both passed review.

    EAL international evaluation standard
    Level
    EAL2
    Validity
    Re-certification in progress
    Product
    SLE Email Security
    IT Security Certification Center
  • Listed No. 04
    Analyst Coverage

    Gartner Email Security

    Featured in Gartner's Market Guide for Email Security alongside 39 other global vendors.

    40 global vendors covered
    Listing
    Vendor Identification for Email Security
    Category
    Email Security Platform
    Product
    SLE · DISARM
    Gartner · Market Guide
  • Active No. 05
    Patents · R&D

    Industry-leading CDR patent portfolio

    One of the few cybersecurity vendors with both reverse-engineering and CDR engines built in-house. 20+ R&D engineers continue to file new applications.

    Multiple registered · more pending
    Category
    File structure analysis and reassembly
    Status
    Multiple registered, more pending
    Tenure
    10+ years (since 2015)
    Engines
    MARS · SLCDR
    Korean Intellectual Property Office (KIPO)
  • Valid No. 06
    Quality · Information Security

    ISO 27001 · ISO 9001

    ISO 27001 (information security management) and ISO 9001 (quality management) certified — supporting global supply-chain requirements.

    ISO information security · quality management
    ISO 27001
    Valid
    ISO 9001
    Valid
    Scope
    Company-wide
    International Organization for Standardization (ISO)
All six are currently valid. Common Criteria is in re-certification. Contact us for original master copies or English-language versions. Contact us
PROCUREMENT · 02

Direct procurement,
no separate tender required.

SecuLetter's main products are listed on Korea's government e-procurement system as both multi-vendor contracts and Innovative Procurement Items. Public-sector buyers can purchase via sole-source or direct procurement with no separate tender. The procedure completes in the five steps below.

  1. STEP 01
    Open the government procurement portal

    Look up SecuLetter SLF in Korea's public procurement system. Multi-vendor contracts allow purchase requests without a separate tender.

  2. STEP 02
    Draft the purchase request

    Cite the certifications on this page directly in your procurement workflow. Attach a procurement-portal capture and the Common Criteria certificate.

  3. STEP 03
    Size the deployment

    Hardware spec based on user count and daily throughput. The SecuLetter sales team supports the quote.

  4. STEP 04
    Contract and delivery

    Contract executed through the government e-procurement system. Average lead time 2–4 weeks, with installation and training included.

  5. STEP 05
    Security-suitability review

    We provide a bundled set of materials for security-suitability evaluation and audit response in public-sector environments.

View on the government e-procurement portal View on the public innovative procurement platform
NEXT STEP · 03

The evidence is in place.
Accelerate the review.

On request we provide original certificates, English-language versions, and reference accounts. Average response within 0.8 business days for government and finance buyers.

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  • 6external proofs
  • 100+organizations in production
  • 10 yrspurpose-built CDR
  • 0.8 dayavg. response