K3Y

K3Y

K3Y Ltd

Thessaloniki, Greece

Penetration TestingOffensive SecurityDetection & ResponseNetwork Security
Serves Enterprise, SMB, Critical Infrastructure
Profile last updated: August 21, 2026

About

K3Y is a cybersecurity company based in Thessaloniki, Greece working in penetration testing, offensive security, detection & response +4 more.

K3Y is a cybersecurity company offering penetration testing, vulnerability assessment, purple teaming and cybersecurity consulting, alongside its own security products and research and development work. Its products include K3CyberRadar (SIEM), K3NetOrchestra (SDN) and K3DecoyNet (honeypots). Its solutions focus on protecting industrial control systems, SCADA, IoT and 5G/6G environments, using AI techniques such as intrusion detection, anomaly detection and threat intelligence. K3Y also runs research and development projects funded by programmes such as H2020 and Horizon Europe, covering areas including cyber ranges, quantum-safe cryptography, zero-trust security and digital twins. The company describes itself as having two pillars: cybersecurity services and research and development.

Location

Thessaloniki, Greece

Legal name

K3Y Ltd

Focus areas

penetration testingvulnerability assessmentpurple teamingSIEMSDNhoneypotICS/SCADA securityIDPS5G6Gdigital twinR&D

Languages

EN

Services & products

Security domains

Penetration TestingOffensive SecurityDetection & ResponseNetwork SecurityOT/ICS SecurityThreat IntelligenceIncident Response

How they deliver

Professional ServicesConsultingSoftware

Products

K3CyberRadar

SIEM

Federated SIEM combining AI-powered detectors and signature/specification-based detection for real-time threat detection and mitigation, with a focus on industrial and 5G protocols.

K3NetOrchestra

SDN

Software-Defined Networking solution that converts traditional IT networks into SDN-enabled networks, with a fault-tolerant controller and web-based dashboard.

K3DecoyNet

Honeypot

Honeypot solution with a Honeypot Manager that orchestrates and deploys honeypots, using reinforcement learning, to detect malicious activity.

Customers

EnterpriseSMBCritical Infrastructure

Industries served

IndustrialTelecommunicationsDefence

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