Jiransecurity
Public Β· 1 known investors
Jiran Security (Jiransecurity) is a South Korean cybersecurity company that develops security software for malware defense, email security, document security, and mobile security. Its offerings serve enterprise customers across areas such as anti-spam, ransomware protection, and mobile device management.
Also known as Jiran Security Β· Jiransecurity Co., Ltd. Β· KB No.5 Special Purpose Acquisition Company Β· μ§λμ§κ΅μν리ν°
Investors Β· 1
Company profile
researched Aug 2026Jiransecurity Co., Ltd. (μ§λμ§κ΅μν리ν°) is a South Korean information security software developer. Its product portfolio is organized around four areas: malicious code/threat response (including attachment-based malware defense, content disarm and reconstruction, and simulated malicious-email training exercises), email security (integrated email security, email data loss prevention, and email archiving), document security (document centralization and secure file servers), and mobile security (enterprise mobility management and mobile email security).
The company positions itself as a leader in the email, document and mobile security segments, citing a top market position for its SpamSniper anti-spam product. It states 25 years of commercial technology experience, 45 patents, and roughly 6,000 customers across the Korean and Japanese markets, spanning financial, public-sector and general enterprise organizations.
Jiransecurity is publicly traded in Korea under the code A208350 and was formerly known as KB No.5 Special Purpose Acquisition Company. It is classified in the software sector and reported 137 employees.
Business model
Jiransecurity develops and distributes security software products licensed to organizations, spanning email security gateways and archiving, document centralization and secure file servers, malware/attachment threat defense, and enterprise mobile management.
Latest developments
In 2024 Jiransecurity completed two share buyback programs: a plan announced in April 2024 expired in October 2024 after repurchasing 497,596 shares (5.94%) for KRW 1,999.99 million, and a plan announced in September 2024 expired in March 2025 after 158,065 shares (2.01%) for KRW 499.78 million. In March 2026 the company authorized a further buyback of KRW 2,000 million of its shares, with a tranche update in June 2026. In August 2026, SSR Inc. announced it expected to receive KRW 6.99999664 billion in funding from Jiransecurity and Jiran SNC Co., Ltd.
βΈFull profile β market position, technology, go-to-market, geography
Market position
The company describes itself as holding the leading position in Korea's email, document and mobile security business areas, with its SpamSniper anti-spam product cited as market leader. It reports approximately 6,000 customers in the Korean and Japanese markets.
Technology
Security software spanning malicious-code detection and blocking for file attachments (including content disarm and reconstruction), spam and email threat filtering, email DLP and archiving, document centralization and secure file server infrastructure, and enterprise mobility management with mobile email security. The company reports 45 patents tied to its commercial technology.
Go-to-market
Enterprise and institutional customers, including financial-sector, public-sector and corporate organizations in Korea and Japan.
Geography
Headquartered in South Korea, with customers in the Korean and Japanese markets.
Compiled by commissioned research from 2 cited public sources β announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed β not independently audited.
Timeline Β· 6
launches, deals, and filingsSSR Inc. announced that it expects to receive KRW 6.99999664 billion in funding from Jiransecurity Co., Ltd and Jiran SNC Co., Ltd.
Jiransecurity reported earnings results for the first quarter ended March 31, 2026.
Jiransecurity reported earnings results for the full year ended December 31, 2025.
Jiransecurity authorized a buyback plan and announced an equity buyback for KRW 2,000 million worth of its shares; a tranche update on the plan followed in June 2026.
The equity buyback announced on September 5, 2024 expired with 158,065 shares repurchased, representing 2.01% of shares, for KRW 499.78 million.
The equity buyback announced on April 25, 2024 expired on October 24, 2024 with 497,596 shares repurchased, representing 5.94% of shares, for KRW 1,999.99 million.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
βΈResearch sources Β· 2
primary sources listed
- Jiransecurityjiransecurity.com Β· web
2 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Jiransecurity do?
- Jiransecurity is a listed South Korean information security software maker covering email, document, mobile and malware defense.
- Who are Jiransecurity's investors?
- Jiransecurity's investors include Atinum Investment Co. Ltd..