Who are Cyllenium?
CYLLENIUM | CYBER SECURITY was founded to simulate real-world threats, expose vulnerabilities, and build true cyber resilience.
Our team merges deep expertise in red teaming, penetration testing, and cyber defense, delivering security solutions that meet modern attack challenges.
Cyllenium’s experts are active in global cyber communities — leading research projects, competing internationally, and continuously evolving with the latest threats.
We specialize in Offensive and Defensive services, including Red Team operations, penetration testing (IT, OT, IoT, SCADA), ransomware simulations, physical assessments, and Purple Team exercises.
We also offer Regulation & Standards consulting (ISO, NIST, GDPR), CISO as a Service for executive-level leadership, and Employee Embezzlement & Fraud Investigations to secure both technology and human factors.
At Cyllenium, we don’t just find weaknesses — we simulate real adversaries, strengthen your defenses, and secure your business future.
OUR SERVICES:
Offensive Security
Test your defenses. Strengthen your response. Stay ahead of real threats.
Cyllenium’s Offensive Security services combine Red Team operations, penetration testing, web and mobile app assessments, IoT and SCADA security testing, and physical intrusion simulations. Our Purple Team engagements help you detect and respond faster — turning every weakness into an opportunity to improve.
CISO As a service
Strengthen your security leadership without the cost of a full-time executive.
Our CISO as a Service provides expert cybersecurity strategy, risk management, compliance guidance, and incident response leadership — tailored to your organization’s needs. We help you build a strong, scalable security program that protects your business and supports growth.
Employee Awarness training
At Cyllenium, we simulate real-world attacks to expose vulnerabilities before they are exploited.
Our offensive services include Red Team engagements, infrastructure and web application penetration testing, mobile app security assessments, IoT and IT environment testing, ransomware emulation, and targeted phishing campaigns.
We tailor every project to your environment — from stealth Red Team operations to collaborative Purple Team exercises that strengthen detection and response.
With Cyllenium, you don’t just find weaknesses — you build real cyber resilience.
OT & Special Security Services
Protect what matters most — from critical infrastructure to life-saving technologies.
We provide specialized cybersecurity services for medical devices, industrial control systems (ICS), SCADA environments, and classified operational technologies.
Our team researches, assesses, and hardens the unique vulnerabilities of critical systems while safeguarding operational integrity and patient safety.
We also design custom cybersecurity solutions, building tailored protocols, training programs, and architectures to meet your organization’s unique challenges.
Employee Embezzlement
Protect what matters most — from critical infrastructure to life-saving technologies.
We provide specialized cybersecurity services for medical devices, industrial control systems (ICS), SCADA environments, and classified operational technologies.
Our team researches, assesses, and hardens the unique vulnerabilities of critical systems while safeguarding operational integrity and patient safety.
We also design custom cybersecurity solutions, building tailored protocols, training programs, and architectures to meet your organization’s unique challenges.