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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Our Managed Detection & Response Services
MDR is a modern approach to cybersecurity designed to keep pace with fast-evolving threats. By blending continuous monitoring, proactive threat hunting, and rapid incident response, it ensures organisations can detect and stop attacks before they escalate. This makes it a critical layer of defence for businesses that need both constant vigilance and expert intervention.
Our managed detection and response service (MDR) follows a clear process to detect threats through 24/7 monitoring and triage, responding through incident response coordination and containing to regain endpoint control as well as advising to be audit ready and assisting in the improvement implementation.

- Imminent Threat Exposure
Cyber adversaries are constantly probing for weaknesses — often before organizations even realize they are a target. With our Imminent Threat Exposure service, you gain real-time visibility into active threats, adversary intent, and emerging risks specific to your business. By anticipating attacks instead of merely reacting, you strengthen decision-making, reduce uncertainty, and protect critical operations with foresight.
- Managed Threat Detection
Attackers don’t wait — and neither should your defenses. Our Managed Threat Detection service provides 24/7 monitoring, advanced analytics, and expert validation to uncover malicious activity before it escalates. By detecting threats early and distinguishing real risks from noise, we help your organization reduce dwell time, limit impact, and safeguard continuity.
- Managed Threat Hunting
Cyber threats often lurk undetected, bypassing automated defenses and waiting to cause damage. Our Managed Threat Hunting service takes a proactive approach: expert analysts actively search for hidden adversaries across your environment, validating suspicious activity before it escalates. This continuous hunt not only reduces dwell time but also strengthens your cyber defense, ensuring your organization stays one step ahead of attackers.
- Managed Extended Detection & Response (MXDR)
With DEFION’s Managed Detection & Response (MDR), your organization benefits from continuous, 24/7 monitoring and response designed to stop threats before they disrupt operations. Rooted in our Active Defense approach, MDR combines advanced detection, expert analysis, and immediate action to neutralize risks in real time. For executives, this means peace of mind: knowing that business continuity, reputation, and resilience are safeguarded around the clock by a trusted security partner.
- Security Control Validation
With DEFION’s Security Control Validation, leadership gains confidence that existing security investments deliver the protection they promise. By continuously testing, validating, and measuring the effectiveness of controls against real-world threats, DEFION provides executives with clear, prioritized insights into where defenses succeed and where gaps remain. This ongoing validation not only strengthens resilience and optimizes spending but also gives leadership assurance that business-critical operations remain protected under pressure.
- Continuous Vulnerability Management
Cyber risk isn’t static — new vulnerabilities emerge daily, and attackers move fast to exploit them. Our Continuous Vulnerability Management service provides an always-on view of your security posture, prioritizing the risks that matter most to your business. With expert validation and remediation guidance, you gain control over exposure, reduce attack surfaces, and ensure resilience without drowning in alerts.
- Managed Threat Intelligence
Threat intelligence is only valuable if it drives action. With our Managed Threat Intelligence service, you gain curated, context-rich insights aligned to your industry, assets, and threat landscape. We cut through the noise to deliver what’s relevant — enabling informed strategic decisions, optimized defenses, and resilience against adversaries that evolve daily.
- Purple Teaming
Strong cyber defense isn’t built on assumptions — it must be tested. Purple Teaming combines controlled attack simulations with collaborative validation to measure and improve your organization’s defensive capabilities. By exposing weaknesses, validating detection, and sharpening response, we deliver actionable improvements that strengthen resilience and prove the effectiveness of your security investments.
- OT Security Monitoring
OT environments are too valuable — and too vulnerable — to leave unmonitored. DEFION’s OT Monitoring provides 24/7 detection, response, and threat hunting across industrial systems. With deep integration into IT and OT landscapes, your organization gains real-time visibility and expert response when every second counts.
How we help

Turning Cyber Risk into Executive Clarity
C-level leaders need visibility, not noise. DEFION translates complex threat landscapes into clear business language — defining what matters most, quantifying exposure, and helping boards make confident, risk-based decisions. Our Executive Advisory bridges strategy and operations, ensuring cybersecurity supports your overall business objectives.

Building Resilience 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.

Ensuring Compliance Becomes Competitive Advantage
Regulations like NIS2, IEC 62443, and the Cyber Resilience Act demand measurable control. DEFION helps you turn compliance into confidence — aligning governance, policy, and technical implementation so you can demonstrate resilience to regulators, partners, and customers alike.

Accelerating Security Maturity with Measurable Impact
Security isn’t static — it evolves with your business. DEFION supports that evolution through targeted assessments, threat-informed testing, and managed detection services. We help executives see progress in tangible metrics: reduced risk exposure, faster response, and a stronger security culture across the organisation.
Hear from our customers
"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.”
Jeroen van Stokkum Manager ICT
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“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.”
Benjamin van der Hilst Co-Founder & CEO

“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.”
Alexander OdijkTeam Manager

“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.”
Gerco VermeerDevelopment Manager

Our 24/7 security monitoring alleviates your risk

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.

You value assessments that drive real decisions — not just reports
DEFION uses assessments as a catalyst for change, not a checkbox.
Our risk assessments, red teaming, and technical evaluations uncover where exposure meets business impact — helping executives prioritise and act.
Combined with threat intelligence, managed detection, and incident response retainers, these insights turn awareness into measurable resilience.

You’re navigating complex new regulations and standards
Compliance pressure is increasing through NIS2, IEC 62443, and the EU Cyber Resilience Act.
DEFION translates those frameworks into practical, measurable actions that ensure compliance, strengthen governance, and demonstrate control to regulators and boards.

In need of unified protection across IT, OT, and IoT?
Today’s infrastructures are hyperconnected — from cloud to factory floor to embedded IoT sensors.
DEFION helps you design one security architecture that covers all layers, preventing attackers from exploiting the weak links between digital, operational, and connected devices.

You expect transparency, independence, and technical excellence
No vendor lock-ins. No hidden agendas.
DEFION operates independently, providing objective advice and proven engineering expertise to help you make decisions that genuinely reduce risk.

Turn 24/7 security monitoring into real response capability.
Speak with our experts and learn how rapid, expert-led response transforms your security posture.
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