Custom detections and hands-on response, tuned to the things scanners miss.
Detection & Response is for organisations that already have telemetry but do not have the detection engineering or analyst depth to make it count. DataExpert builds custom detection content for your environment, hunts on a recurring cadence, and stands beside your team during response — so the things that matter actually get found and contained.
Out-of-the-box detections from EDR and SIEM vendors are a starting point, not a finishing line. They catch the obvious and miss the subtle. We write detections specifically for your environment — your business processes, your user behaviour, your critical assets — and we maintain them as your estate evolves. The result is fewer false positives and substantially more relevant findings.
Threat hunting is run on a defined cadence — quarterly at minimum, more frequently for high-risk sectors — and informed by current threat intelligence, recent incidents we have seen across our client base, and emerging tactics observed in the EU regulatory landscape. Every hunt produces a written report with detection-coverage recommendations and a list of follow-on actions.
When a detection fires, we work alongside your internal team. We do not parachute in and take over your environment. Our analysts join your incident bridge, contribute the forensic depth, and write the post-incident report — but the response is run by the people who know your business. That collaborative model is what most clients tell us they were missing from previous providers.
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Custom detection engineering means we write rules, queries, and analytics that are specific to your environment — not the default content shipped by your EDR or SIEM vendor. We start from your top business risks, map them against the MITRE ATT&CK framework, and produce detections that look for adversary behaviour relevant to your sector, your geography, and your tooling. The content is versioned, reviewed, and tuned over time.
Monitoring is reactive — it waits for an alert and triages it. Threat hunting is proactive — analysts go looking for adversary activity that has not yet triggered an alert, usually based on a specific hypothesis. Hunting is where you find the long-dwelling, low-signal compromises that automated tools miss. DataExpert runs hunts on a structured cadence, with each hunt producing both findings and detection-content improvements.
No. Detection & Response is designed to extend an existing team, not replace it. The work we do — detection engineering, hunting, post-incident analysis — is exactly the work many internal SOC teams want to do but rarely have the time or specialist depth for. Our analysts collaborate with yours; the muscle stays in-house, the deep specialist capability comes from us.
We work across the major EDR, SIEM, and identity-security platforms used in the EU enterprise market. Detection content is authored in the native query language of the platform — KQL, SPL, EQL, and so on — and packaged in formats your team can review and version-control. We will confirm exact compatibility during scoping. [VERIFY: full platform list to share publicly]
First detections typically land within the first two to four weeks of an engagement, once we have completed the use-case workshop and confirmed access to your telemetry. Detection content evolves continuously after that — we treat detection engineering as a programme, not a one-off delivery, with a documented review and tuning cadence.
Each hunt produces a written report with three sections: hypothesis and methodology, findings — including any anomalies that did not rise to the level of an incident but warrant follow-up — and detection-content recommendations. The report is written for both your security lead and your audit committee, and references the specific queries and data sources used so the work is reproducible.
If a hunt or detection surfaces a real incident, we transition immediately into incident-response mode. Our IR practitioners take part in your incident bridge, perform the forensics, contain the threat in collaboration with your team, and write the formal post-incident report. Clients who want guaranteed IR capacity typically pair Detection & Response with a Crisis Management retainer.
Get in touch — we’ll route your case to the operators who have done this kind of work before.
or call +31 (0)318 543173