NSFOCUS
Chinese cybersecurity solutions provider
Last updated October 12, 2026
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Overview
NSFOCUS is a Chinese cybersecurity company founded in 2000 and headquartered in Beijing. The company operates under the Chinese name 绿盟科技 and is commonly known in English as NSFOCUS. Its business is focused on protecting enterprise, government, telecommunications, financial, and other critical information systems from network attacks and service disruption. The company’s portfolio has historically included intrusion detection and prevention, distributed-denial-of-service protection, web application firewalls, vulnerability and risk management, security management platforms, security assessment, and incident-response services. These offerings address different layers of an organization’s security architecture: monitoring and detection, traffic and application protection, exposure discovery, centralized operations, and expert support. NSFOCUS has also positioned cloud-based and managed security capabilities as part of its broader response to the migration of applications and infrastructure into public, private, and hybrid cloud environments. NSFOCUS is best understood as an enterprise and institutional security provider rather than a consumer antivirus brand. Its customers and target users require protection for data centers, websites, applications, networks, cloud workloads, and operational systems. The company’s product-oriented business is complemented by security consulting, testing, emergency response, operation and maintenance, and other professional services. This combination allows it to participate in both the initial deployment of security controls and the continuing monitoring and improvement of a customer’s security posture. A central part of the company’s market proposition is defense against high-volume and application-layer attacks. DDoS protection is intended to preserve the availability of online services during malicious traffic floods, while web application firewall products are designed to inspect and filter requests to internet-facing applications. Intrusion detection and prevention products provide visibility into suspicious activity and may support blocking or response workflows. Together with vulnerability assessment and security operations capabilities, these products form an integrated enterprise-security offering. The NSFOCUS brand is primarily associated with the Chinese cybersecurity market, although the company has also presented its products and services for international use. Its public-company identity gives the brand a corporate and capital-markets dimension in addition to its technology-provider role. The company’s shares trade in Shenzhen under ticker 300369.SZ. Specific current product names, executive assignments, financial results, customer counts, and geographic revenue details are not stated here because they require verification against current company disclosures or other authoritative sources.
History
NSFOCUS was established in 2000 in China as a specialist network-security company. From its early focus on protecting networks and internet-facing systems, the brand developed around the security requirements of large organizations, public institutions, and service providers. Its initial and continuing areas of relevance include intrusion detection, attack monitoring, vulnerability management, and protection against attempts to compromise the availability or integrity of online services. As internet use expanded and enterprise applications became increasingly exposed to external networks, NSFOCUS broadened its product coverage. DDoS protection became an important part of the portfolio because organizations needed to maintain service availability during large-scale traffic attacks. Web application firewall technology addressed a different problem: filtering malicious or abnormal requests directed at websites and application interfaces. These technologies complemented intrusion detection and prevention products, which provide visibility into suspicious activity across networks and systems. The company also developed a services business around the deployment and operation of security technologies. Security assessment, penetration and vulnerability testing, emergency response, security consulting, and managed or operational support enable customers to obtain assistance beyond the purchase of an appliance or software license. This product-and-services model is particularly relevant to government bodies, regulated industries, telecommunications operators, financial institutions, and large enterprises that need continuous security operations rather than a single point-in-time installation. Cloud computing and the increasing distribution of applications changed the technical environment in which NSFOCUS competes. Protection requirements moved beyond traditional enterprise perimeters toward cloud platforms, internet data centers, application delivery environments, and hybrid infrastructure. NSFOCUS has accordingly presented cloud security, security operations, and service-based protection as extensions of its established network and application-security capabilities. Its stated market identity remains centered on enterprise and institutional cybersecurity rather than consumer security software. NSFOCUS became a publicly traded company in China under Shenzhen ticker 300369.SZ. Public-company status supports the company’s ability to operate as a large technology vendor and provides a formal disclosure channel for corporate developments. However, the supplied source material does not establish a complete chronology of corporate restructurings, acquisitions, leadership changes, product launches, or international expansion. Those subjects should be added only after checking dated company announcements, exchange filings, annual reports, or other authoritative records. Today, NSFOCUS is associated with a broad cybersecurity portfolio spanning network protection, DDoS mitigation, web application security, vulnerability and risk management, cloud security, security operations, and professional services. Its principal competitive context is the enterprise-security market, where customers evaluate vendors on detection quality, protection performance, response capability, deployment flexibility, service coverage, compliance support, and the ability to integrate multiple security controls into a coordinated operating model.
- 2000
NSFOCUS founded
[1]NSFOCUS was established in China as a cybersecurity company focused on protecting networks and internet-facing information systems.
Public listing
[1]NSFOCUS became a publicly traded company in Shenzhen under ticker 300369.SZ. The exact listing date is not included here without a verified dated source.
Products and positioning
Enterprise, government, telecommunications, and critical-infrastructure cybersecurity, combining security products with professional and managed services.
Network security
Intrusion Detection and Prevention
NSFOCUS’s intrusion detection and prevention offering is intended to identify suspicious network activity and support defensive action against malicious traffic. It fits into enterprise security architectures that require monitoring, alerting, policy enforcement, and investigation across network environments.
Availability security
DDoS Protection
DDoS protection is designed to help keep websites, applications, and network services available during distributed-denial-of-service attacks. The capability addresses attacks that overwhelm bandwidth, network resources, or application infrastructure with malicious traffic.
Application security
Web Application Firewall
The web application firewall offering is intended to inspect requests reaching web applications and filter traffic associated with common application-layer attacks or policy violations. It supports the protection of public websites, APIs, and other internet-facing application services.
Professional services
Security Services
NSFOCUS provides cybersecurity services such as security assessment, vulnerability analysis, consulting, incident response, and operational support. These services are intended to help customers deploy controls, investigate threats, improve resilience, and maintain security programs over time.
Cloud security
Cloud and Security Operations
Cloud and security-operations capabilities extend the company’s protection model to cloud, hybrid, and distributed infrastructure. They are associated with centralized monitoring, risk visibility, coordinated response, and protection of workloads and applications outside a conventional corporate perimeter.
Controversies
Recent events
NSFOCUS holds 2026 autumn release conference unveiling AI agent security innovation results[3]
Reported:
On October 12, 2026, NSFOCUS (绿盟科技) held its 2026 autumn large model security innovation results release conference, where it presented AI agent security innovation results. Citing real-environment testing, the company said agent-style AI mainly carries three risk categories (shared cross-form security risks, Skills risks, and sandbox escape risks) and described a combination of capabilities including full-chain agent behavior auditing, security screening of files that agents read and send out, and unified control of enterprise large-model access entry points and agent permissions to internal systems. NSFOCUS also noted it was one of the drafting units of the recently published standard practice guide on agent deployment and use security.
NSFOCUS and Qianhai Insurance launch cybersecurity insurance service 2.0[4]
Reported:
NSFOCUS formally launched its cybersecurity insurance service 2.0, an expanded version of the service developed with Qianhai Insurance, with broader coverage and upgraded technical services.
China Telecom Anhui and NSFOCUS form strategic partnership[5]
Reported:
China Telecom Anhui and NSFOCUS formally established a strategic partnership covering city SOC, security services, advanced threat analysis, industrial internet security, and joint industry-academia-research work.
Sources5 sources
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