24/7 Security Monitoring
Round-the-clock monitoring by analysts who understand attacker tradecraft. Your environment is watched by people who know how adversaries operate, not just tool operators triaging alerts.
// Managed Detection & Response
Managed Detection & Response
Detection engineered by red teamers. Response delivered by operators.
TSO's MDR is not a rebadged SIEM licence. It is a managed security service built on years of offensive and defensive operations across multiple sectors. Our detection rules are written by people who have spent their careers breaking into systems — they know what attacker behaviour actually looks like. Combined with 24/7 monitoring, proactive threat hunting, and incident response included by default, you get a security partner that owns outcomes, not just alerts.
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What We Deliver
Red Team-Informed Detection
Detection rules built from real offensive experience. We write detections based on how attackers actually move through environments, covering techniques that vendor-default rulesets miss.
Proactive Threat Hunting
Hypothesis-driven hunts for threats that automated rules cannot catch. Our hunters proactively search for signs of compromise in your environment on a regular cadence.
Incident Response & Forensics
When our monitoring confirms a real threat, we contain it, investigate the root cause, and guide recovery. Incident response is included in the retainer — no extra fees, no separate contracts.
SIEM & EDR Management
We manage and tune your security tooling so it stays effective. Log source onboarding, rule tuning, false positive reduction, and coverage gap analysis handled for you.
Custom Detection Engineering
Bespoke detection rules tailored to your specific environment, applications, and threat profile. Not generic vendor content — detections that fit how your organisation operates.
// Our Approach
How Our MDR Works
01
Environment Assessment
We assess your current security tooling, log sources, and threat landscape to design detection coverage that fits.
02
Onboarding & Integration
We connect to your environment, onboard log sources, deploy detection rules, and establish communication channels.
03
Continuous Monitoring
24/7 monitoring by our analysts. Alert triage, investigation, and escalation following defined playbooks.
04
Threat Hunting
Regular proactive hunts based on threat intelligence, attacker TTPs, and environment-specific hypotheses.
05
Response & Containment
When a confirmed threat is detected, our team contains it, investigates, and coordinates recovery with your staff.
06
Review & Adapt
Quarterly business reviews, detection coverage reports, and continuous tuning to keep pace with evolving threats.
What is included in managed detection and response?
A managed detection and response service combines several security functions into a single retainer. At TSO, that includes continuous security monitoring across your endpoints, network, cloud infrastructure, and applications. Our analysts triage and investigate alerts around the clock, filtering out false positives so your team only hears about genuine threats. Detection engineering is included: we build and maintain custom detection rules based on real attacker techniques, not just vendor defaults. Proactive threat hunting runs on a regular cadence, where our analysts actively search for signs of compromise that automated rules have not caught. When a confirmed threat is detected, our team contains it, investigates the root cause, conducts forensic analysis where needed, and coordinates recovery with your staff. SIEM and EDR management, log source onboarding, quarterly business reviews, and detection coverage reporting are all part of the retainer. Incident response is included by default — no separate contract, no surprise invoices during a crisis.
MDR vs SIEM: what is the difference?
A SIEM is a technology platform that collects and correlates security logs from across your environment. MDR is a managed service that includes people, processes, and technology — a SIEM is typically one of the tools inside an MDR service, but not the service itself. The difference matters because buying a SIEM licence does not give you security monitoring. Someone needs to write the detection rules, tune them to reduce noise, investigate the alerts, hunt for threats the rules miss, and respond when something real is found. Many organisations purchase a SIEM expecting it to solve their security monitoring problem, only to find that the platform generates thousands of alerts per day with no one qualified to handle them. MDR solves this by providing the analysts and operational processes that make the SIEM useful. If you already have a SIEM investment, an MDR provider can manage and optimise it as part of the service rather than replacing it.
How does 24/7 security monitoring work?
Genuine 24/7 security monitoring means trained human analysts are reviewing and investigating alerts at every hour of the day and night, including weekends and public holidays. At TSO, our monitoring operates in shifts with defined escalation procedures and response playbooks for every alert category. When a detection fires, an analyst investigates it within minutes — examining the context, checking for related activity across the environment, and determining whether the alert represents a genuine threat or a false positive. Confirmed threats are escalated immediately with containment actions taken in coordination with your team. This is fundamentally different from automated alerting, where a tool sends an email or a ticket at three in the morning and nobody looks at it until business hours. Attackers know this gap exists, which is why the majority of ransomware deployments happen outside business hours. Continuous monitoring closes that window.
MDR pricing and retainer model
TSO delivers MDR as a fixed monthly retainer. The retainer covers 24/7 monitoring, detection engineering, threat hunting, incident response, tooling management, and reporting. There are no per-incident fees and no surprise charges when something goes wrong — that is the point of a retainer model. Pricing is based on the size and complexity of your environment: the number of endpoints monitored, log volumes ingested, the number and types of cloud services, and any specific compliance or reporting requirements. For a typical Belgian mid-market organisation with one hundred to five hundred endpoints, the retainer is a fraction of the cost of staffing even a partial internal SOC. We scope every engagement individually because cookie-cutter pricing leads to either gaps in coverage or unnecessary spend. The initial conversation covers your environment, your threat profile, and your budget, and we provide a transparent proposal with no hidden costs.
Why choose TSO for MDR in Belgium?
TSO is a Belgian company built by security operators, not resellers. Our team holds offensive certifications including OSCP, CRTO, and OSEP, and our red team experience directly informs the detections we write for our MDR clients. When we discover a new attack path during a penetration test or red team engagement, that finding becomes a detection rule that protects the environments we monitor. This feedback loop between offence and defence is not something you get from a large-scale MSSP that has never tested the networks it claims to protect. We understand the Belgian regulatory landscape — NIS2, the CCB's CyberFundamentals framework, GDPR, and sector-specific requirements — because we operate in it. Our reporting and processes are designed to support your compliance obligations, not just generate dashboards. And because we work with a focused client base rather than thousands of accounts, our analysts develop genuine familiarity with your environment. You are not a ticket number.
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