DEFENDING YOUR FUTURE - TODAY.
Turn security into a strategic advantage & strengthen resilience with DEFION Security.
Trusted by industry leaders. Certified for excellence.
ELEVATING YOUR SECURITY WITH ACTIVE DEFENSE
We are DEFION. We embed cybersecurity into the core of your organisation, turning it into a strategic advantage for long-term protection and progress.
DEFION provides independent, expert-led protection across your digital landscape, ensuring continuity, resilience, and compliance in an evolving threat environment. Trusted by leadership teams across sectors, DEFION delivers the clarity and confidence needed to safeguard operations, reputation, and strategic growth.
Secure your AI - Before it Becomes a Risk
AI is transforming your organisation, but also expanding your attack surface. Get clarity on your AI exposure and strengthen resilience with independent expert assessment.
Know your AI security exposure. Contact DEFION.
How DEFION helps industry leaders and security specialists - customer stories
"Thanks to DEFION, we benefit from up-to-date knowledge about contemporary security threats and means to avert risks. We have peace of mind knowing we are fully supported 24/7 by their team.”
“The sector and the partners we work with maintain increasingly high security standards for IoT-products and services. Protecting the privacy of individuals in the images and the sensitivity of the information the drones collect, such as on objects in critical infrastructure, requires our security to be airtight. With Defion, we are working with a professional partner who can support us at the right level. The collaboration also fits perfectly within our strategy to deliver reliable and secure drone technology to European customers.”
“New requirements from NIS2 for OT systems are increasing the focus on security. With Defion, we know we have the right expertise in-house to keep our systems secure. The collaboration was easy and pleasant; the specialists truly sat next to us rather than across from us. Thanks to their openness and expertise, we are working together toward the same goal: optimal security. This gives us the confidence to face the future.”
“If you look at where we were ten years ago, we’ve made enormous progress. The sense of control is greater. With Security Assurance and MDR we have set up processes and control mechanisms that allow us to limit the impact of a potential attack. The collaboration also serves as a constant reminder to maintain focus on security and set the right priorities in that area. It keeps us alert and sharp. Moreover, Defion’s specialists are highly technical and passionate about their field. That clearly shows in their services.”
In need of unified protection across IT, OT, and IoT?
Your digital and operational systems are deeply connected — and attackers know it. DEFION secures the entire ecosystem, from corporate networks to industrial controllers and connected devices. Through Active Defense, continuous monitoring, and tailored response plans, we keep operations safe, compliant, and uninterrupted.
Build resilience across IT, OT, and IoT. Connect with DEFION today.Sectors
Manufacturing & Industry
Keeping production running, safely and securely.
Manufacturers and industrial operators rely on time-critical processes and flawless delivery. A single cyber incident can halt production lines, disrupt supply chains, and cause financial and reputational losses. DEFION provides cybersecurity services tailored to industrial environments, combining IT and OT expertise to secure operations without interrupting productivity.
Government
Upholding trust in public institutions.
Governments at all levels - central, regional, and local - hold sensitive citizen data and deliver essential public services. Cyberattacks targeting public administrations, justice systems, emergency response, or citizen portals undermine public trust and disrupt social stability. DEFION provides specialized cybersecurity services for government entities, ensuring resilience, regulatory compliance, and operational continuity.
Retail & E-commerce
Secure shopping, secures trust.
Retailers and e-commerce platforms operate in fast-moving, margin-driven markets where downtime, fraud, or data breaches can immediately impact revenue and reputation. DEFION provides cybersecurity services designed to keep online and in-store operations secure, resilient, and trusted—so you can focus on growth.
Financial Services
Protect trust. Reduce risk. Stay compliant.
Financial institutions are prime targets for cybercrime. Banks, insurers, asset managers, and fintechs must safeguard sensitive data, keep services available, and meet stringent security regulations. DEFION delivers financial sector-specific cybersecurity that strengthens resilience end-to-end, from prevention and detection to response and recovery.
Research & Education
Protecting people, knowledge and innovation.
Educational institutions and research facilities are prime targets for cyberattacks. Educational and research facilities of all sizes and shapes face ransomware, espionage, and data theft campaigns that jeopardize learning, research breakthroughs, and patient care. DEFION specializes in protecting this sector with advanced detection and response services (MDR/SOC-SIEM) and threat intelligence, ensuring security without hindering academic freedom or innovation.
Technology & SaaS
Secure innovation at scale.
Technology providers, SaaS platforms, and MSPs deliver the digital backbone of today’s economy. From fintech to cloud services, their solutions must be fast, available, and secure—without compromise. DEFION strengthens trust in tech companies by embedding cybersecurity into every layer: securing supply chains, demonstrating compliance, and enabling secure growth.
Critical Infrastructures
Protect what society depends on.
Energy, water, transport, healthcare, telecom, and digital infrastructure are the backbone of modern life. Disruption in these systems can have cascading effects across economies and communities. DEFION provides advanced cybersecurity tailored to operators of essential services, ensuring continuity, resilience, and compliance with sector regulations such as NIS2.
Trusted by operators in energy, utilities, healthcare, transport, telecom, and digital infrastructure.
Why work with DEFION?
You want security decisions backed by executive insight
Cybersecurity is now a business risk, not just a technical one.
DEFION’s Executive Advisory services connect security and strategy — guiding leaders with clear visibility, prioritization, and crisis preparedness when decisions matter most.
Your operations can’t afford downtime or disruption
Whether in manufacturing, energy, or critical infrastructure, uptime and safety are non-negotiable.
DEFION helps you build defenses that respect availability while enhancing resilience — ensuring secure, continuous operations across IT, OT, and IoT environments.
You want attackers to be detected — and stopped — before they reach you
Modern threats move fast, often across IT, OT, and IoT networks.
DEFION’s Active Defense combines real-time detection, threat hunting, and adversary emulation to expose and neutralize attacks before they disrupt operations.
Our security services to elevate your long term progress.
DEFION unites board-level strategy with hands-on technical expertise. From advisory and risk assessment to 24/7 monitoring, red teaming, and incident response, we cover the entire cybersecurity spectrum. Executives gain clarity and assurance, while technical teams benefit from actionable insights and direct collaboration. We are DEFION. We provide independent, expert-led protection across your digital landscape, ensuring continuity, resilience, and compliance in an evolving threat environment. Trusted by leadership teams across sectors, DEFION delivers the clarity and confidence needed to safeguard operations, reputation, and long-term strategic goals.
Strategic Resilience
Security Advisory Services
Transform security compliance into a competitive advantage, accelerate decision-making, and reduce operational risk. Ensure your business grows seamlessly by efficiently securing every new technology, platform, or market before scaling.
Explore these servicesNIS2 Readiness Assessment
Cyber Insurance Advisory Services
DORA Readiness Assessment
ISO 27001 Readiness Assessment
CISO as a Service
Security Compliance Services
Cyber Security Assessment (CSA)
OT Security Baseline Assessment
Cyber Comfort Check
Security Awareness Masterclass
Cyber Security Executive Services
CRA Readiness Assessment
Security Assurance
Attack Readiness
Pentesting Services
With DEFION’s Penetration Testing, organizations gain executive-level assurance of how well their defenses hold up against real-world threats. By systematically probing networks, applications, and infrastructure, DEFION identifies vulnerabilities before adversaries exploit them—delivering clear, prioritized insights that help leadership strengthen resilience, reduce business risk, and demonstrate readiness. As part of Attack Readiness, penetration testing ensures security posture is not assumed but proven.
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Adaptive Threat Detection
Managed Detection & Response Services
DEFION’s Managed Detection & Response (MDR) delivers 24/7 vigilance, powered by actionable threat intelligence and our Active Defense approach. By combining continuous monitoring, expert analysis, and rapid response, MDR gives leadership confidence that threats are detected, understood, and contained—ensuring business continuity, reputation, and resilience are safeguarded around the clock.
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Cyber Crisis Management
Digital Forensics & Incident Response Services
DEFION’s Digital Forensics & Incident Response (DFIR) services give leadership confidence before, during, and after a cyber incident. We help organizations prepare with tailored response planning, validate readiness through exercises, and provide immediate expertise when crises unfold. From containing active threats to conducting forensic investigations and preserving evidence, DEFION delivers clear, executive-level insights that guide decision-making, reduce disruption, and accelerate recovery—ensuring resilience, compliance, and trust at the highest level.
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Business Continuity & Recovery
Business Continuity Services
DEFION’s Business Continuity Services ensure your organization remains resilient in the face of cyber incidents, disruptions, and regulatory demands. By combining risk assessments, continuity planning, and executive advisory, we help leadership safeguard critical operations, protect reputation, and maintain compliance—turning resilience into a strategic advantage.
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Turn 24/7 security monitoring into real response capability.
Speak with our experts and learn how rapid, expert-led response transforms your security posture.
Contact us