Cybersecurity products engineered for controlled environments.
GNSAC is a cybersecurity product company headquartered in Istanbul and serving organisations with demanding security, data-governance and operational requirements. We develop GNSAC Vigil for external threat intelligence and digital risk protection, and GNSAC Phishing for security-awareness simulation.

Product engineering supported by security practitioners.
GNSAC develops and supports its own platforms. Implementation services are focused on deployment, integration, tuning and operational adoption, helping customer teams establish a sustainable capability around the product.
Product ownership
Core collection, correlation, analysis and reporting capabilities are developed and maintained by GNSAC.
Controlled deployment
On-premises options support customer-controlled infrastructure and customer-isolated data stores; managed SaaS is available where appropriate.
Evidence-led findings
Findings retain available source context, timestamps and investigation history to support technical review and reporting.
Specialist support
GNSAC engineers support installation, integrations, tuning and product operation through defined service processes.
Product engineering and security expertise, delivered together.
Vigil is developed and supported by GNSAC. Customers can retain operational control through an on-premises deployment or select a managed SaaS service.
Customer-controlled deployment
The on-premises appliance uses a customer-isolated database and a documented intelligence synchronisation channel. Detailed data flows are available for security review.
Operational intelligence at scale
Vigil continuously processes collected exposure and threat data. Platform metrics are reported with their scope and processing status to support informed evaluation.
Organisationally relevant findings
Signals are correlated with authorised domains, identities, brands and third parties, then retained with source context for investigation.
Specialist implementation and support
GNSAC security engineers support deployment, integration and tuning through defined support channels and escalation paths.
Our Core Values
The principles that guide how we build, deliver, and support.
- Security FirstSecurity is embedded in our products, processes, and culture.
- Continuous ImprovementWe evolve our platforms based on threats and client feedback.
- Client AccountabilityWe define ownership, acceptance criteria and measurable operational outcomes.
- Operational ExcellenceWe work to agreed delivery plans and maintain clear records of decisions and outputs.
Designed to support security and supplier assurance.
Deployment controls such as customer isolation, role-based access and auditable user activity can support data-governance and risk-management requirements. Architecture, connectivity and data-flow documentation is available for customer security review. Regulatory compliance remains dependent on each organisation’s implementation, policies and legal obligations.
Built by a practitioner, not a marketing department.
Barış Keçeci is a cybersecurity engineer with over fifteen years in security operations and product engineering. He leads the design and development of GNSAC Vigil and GNSAC Phishing, publishes engineering write-ups on HackerNoon and maintains open-source security tooling on GitHub.
Review the platform with our security specialists.
Discuss your external-risk priorities, deployment model and integration requirements in a focused product session.
