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SecuLetter Co., Ltd. — Investor Relations & Filings

Ticker · 418250 ISIN · KR7418250007 KO Telecommunications, computer programming, consultancy, computing infrastructure, and other information service activities
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Filings indexed 120 across all filing types
Latest filing 2026-05-14 Interim / Quarterly Rep…
Country KR South Korea
Listing KO 418250

About SecuLetter Co., Ltd.

https://www.seculetter.com/en/

SecuLetter Co., Ltd. is a cybersecurity firm specializing in advanced threat detection and malware analysis. The company provides solutions to proactively defend against unknown cyberattacks, including zero-day exploits and ransomware, that leverage non-executable files. Its core technology utilizes a hybrid approach combining AI-driven static and dynamic analysis with automated reverse-engineering. A key differentiator is its Content Disarm and Reconstruction (CDR) technology, which operates on a zero-trust principle to neutralize embedded threats by disarming and rebuilding files into secure versions. SecuLetter's product suite offers protection for various environments, including email security (SLE), file security for internal networks (SLF), and cloud security (DISARM) designed to enhance platforms such as Microsoft 365.

Recent filings

Filing Released Lang Actions
분기보고서 (2026.03)
Interim / Quarterly Report Classification · 96% confidence The document is titled “분기보고서 (제 12기)” covering the period from 2026-01-01 to 2026-03-31 and contains detailed financial tables (revenue breakdown by product and period), capital changes, share information, corporate history, business description, and other substantive financial data. It is not merely an announcement of a report (it includes the full content of the interim report) and is clearly a comprehensive quarterly report, fitting the definition of an Interim / Quarterly Report (IR). Q1 2026
2026-05-14 Korean
주식등의대량보유상황보고서(약식)
Major Shareholding Notification Classification · 95% confidence The document is a formal "주식등의 대량보유상황보고서(약식)" under Korea’s Capital Markets Act, detailing a major shareholding position change by Daea Investment Co., Ltd. This is a regulatory notification when an investor crosses a significant shareholding threshold. It is not an AGM material or financial report but a direct major shareholding notification.
2026-05-11 Korean
단기차입금감소결정(자율공시)
Capital/Financing Update Classification · 75% confidence The document is a Korean voluntary disclosure (“자율공시”) detailing the company’s decision to reduce short-term borrowings by KRW 2,000,000,000. It reports on a change in the company’s debt financing and capital structure (repayment of short-term debt), which aligns with the Capital/Financing Update category. It is not a full financial report, management announcement, share capital change, or dividend notice, but specifically a financing activity update.
2026-05-11 Korean
증권발행결과(자율공시) (제1회차 CB)
Regulatory Filings
2026-05-08 Korean
기타시장안내 (개선기간 종료에 따른 상장폐지 여부 결정 안내)
Delisting Announcement Classification · 100% confidence The document is an official announcement regarding the end of an improvement period and the potential delisting decision for the company '시큐레터(주)'. It discusses the timeline for submitting improvement plans and the subsequent review by the exchange's committees to decide on delisting. There are no financial statements or detailed reports included, only a regulatory notice about the delisting process. The document length is short (498 characters), and it serves as a formal notice rather than a report. Therefore, it fits the category of a Delisting Announcement (DLST).
2026-04-30 Korean
주요사항보고서(전환사채권발행결정)
Capital/Financing Update Classification · 95% confidence The document is a detailed report about the decision to issue convertible bonds (전환사채권 발행결정) by the company 시큐레터주식회사. It includes specifics about the bond issuance such as amount, interest rates, maturity, conversion price adjustments, put options, collateral, and related financial details. The document is addressed to regulatory bodies (금융위원회 / 한국거래소) and contains detailed financial and issuance terms rather than a brief announcement or a summary. It is not a general regulatory filing or a report publication announcement because it contains substantive financial and issuance details. It is not an annual or interim report, nor a management or earnings report. The content fits the category of Capital/Financing Update (CAP) as it provides an update on the company's fundraising activity through convertible bond issuance.
2026-04-30 Korean

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