Stop Threats Before They Become
Breaches
SourceMash MDR delivers 24/7/365 threat monitoring, expert-led investigation, and hands-on containment across your entire attack surface combining elite security analysts, battle-tested playbooks, and AI-accelerated detection so your organisation responds to threats in minutes, not months.
Our MDR Practices
Three Practices. One Expert Security Partner.
Whether you need round-the-clock eyes on your environment, a rapid-response team for active incidents, or elite analysts hunting threats your tools are missing SourceMash has the specialist expertise for every security brief.
Practice 01
24/7 Threat Monitoring
Threats don't respect business hours and neither does our Security Operations Centre. SourceMash MDR delivers continuous, expert-driven monitoring across your entire environment: endpoints, cloud workloads, identities, email, and network traffic. Our analysts are backed by AI-powered correlation engines that process millions of events per second, surfacing the signals that matter and cutting through the noise so we can act before attackers establish persistence. You get a world-class SOC without the seven-figure build cost.
SIEM Management & Monitoring
Full lifecycle management of your SIEM platform including log source onboarding, detection rule development, alert tuning, and around-the-clock monitoring by Tier 2 and Tier 3 analysts. We reduce false positive rates by over 80% within the first 90 days through continuous rule refinement driven by your specific environment's baseline behaviour and threat profile.
Endpoint Detection & Response (EDR)
Continuous endpoint telemetry monitoring across workstations, servers, and cloud-hosted virtual machines with real-time process tree analysis, memory forensics, and behavioural detection of fileless malware, living-off-the-land attacks, and advanced persistent threats that bypass traditional signature-based antivirus entirely.
Cloud Security Monitoring
Continuous monitoring of your AWS, Azure, and GCP environments covering cloud control plane activity, misconfiguration drift, identity privilege escalation, data exfiltration patterns, and container and Kubernetes workload anomalies. Every alert is mapped to the MITRE ATT&CK framework for cloud so your team understands exactly what an attacker is attempting and how far they have progressed.
Identity & Access Threat Monitoring
Monitoring of identity planes across Active Directory, Entra ID, Okta, and other IAM platforms detecting impossible travel, credential stuffing, pass-the-hash, Kerberoasting, and service account abuse in real time. Identity is the primary attack vector in 80% of breaches, and our analysts are trained specifically to recognise subtle identity-based attack progressions before lateral movement begins.
Network Detection & Response (NDR)
Deep packet inspection and east-west traffic analysis across your network fabric detecting lateral movement, command-and-control beaconing, DNS tunnelling, and encrypted threat traffic that endpoint tools miss entirely. NDR gives us visibility into the network layer that no EDR can provide, closing the detection gap that sophisticated threat actors deliberately target and exploit.
Email & Collaboration Security Monitoring
Real-time monitoring of email and collaboration platforms for phishing, business email compromise, malicious attachments, OAuth application abuse, and insider data exfiltration via SharePoint, Teams, Slack, and Google Workspace the delivery channels responsible for over 90% of initial access events in enterprise breach investigations.
Monitoring Core Capabilities
Practice 02
Incident Response
When an attacker is active in your environment, every minute of dwell time increases the blast radius. SourceMash Incident Response puts a battle-hardened response team in place remotely or on-site within hours of a confirmed incident. We contain the threat, eradicate the attacker's presence, preserve forensic evidence for regulatory and legal purposes, and work alongside your team to restore operations at pace. Our IR retainer clients pay the lowest breach costs in their sectors because preparation eliminates the scramble.
IR Retainer & Preparedness
Pre-negotiated incident response retainers that give your organisation guaranteed access to SourceMash IR specialists on a sub-one-hour SLA with environment pre-onboarding, tailored IR playbook development, tabletop exercise facilitation, and a dedicated IR lead who knows your infrastructure before an incident ever occurs. Preparation is the most cost-effective security investment you can make.
Active Breach Containment
Rapid, hands-on containment of active intrusions network segmentation, compromised account suspension, endpoint isolation, and command-and-control channel disruption executed by our analysts directly in your environment under your authorisation. We move at attacker speed and faster, cutting off their access before exfiltration, encryption, or destructive activity can complete.
Digital Forensics & Investigation
Court-admissible digital forensics investigations covering memory forensics, disk imaging, log analysis, timeline reconstruction, and malware reverse engineering establishing the full scope of compromise, the attacker's initial access vector, their dwell time, every system and data set accessed, and the evidence chain required for regulatory notifications, legal proceedings, and cyber insurance claims.
Ransomware Response & Recovery
Specialist ransomware incident response covering ransom negotiation support, decryption key assessment, backup integrity validation, clean-room recovery orchestration, and post-recovery hardening to close the initial access vector and prevent immediate re-infection. We have responded to over 200 ransomware incidents across manufacturing, healthcare, financial services, and critical infrastructure.
Regulatory Notification & Compliance
Expert guidance through the post-breach regulatory landscape drafting breach notification letters to data protection authorities, supporting GDPR 72-hour notification obligations, HIPAA breach assessment, PCI-DSS forensic investigation coordination, and preparing the technical evidence packages that regulators, insurers, and legal counsel require to evaluate your organisation's response posture.
Post-Incident Hardening & Resilience
Structured post-incident review and remediation planning root cause analysis, attack path reconstruction, security control gap assessment, and a prioritised 90-day hardening roadmap to close every vulnerability the attacker exploited. We ensure you emerge from an incident meaningfully more secure than you entered it, with lessons operationalised into your detection and prevention controls.
Incident Response Core Capabilities
Practice 03
Threat Hunting
The most dangerous threats in your environment are the ones your automated tools haven't flagged adversaries operating below the detection threshold, exploiting misconfigurations, living off legitimate tools, and moving laterally with extreme patience. SourceMash Threat Hunting deploys elite analysts who think like attackers, proactively searching your environment for indicators of compromise and attacker tradecraft that no automated alert would ever surface. We find what's hiding in plain sight.
Hypothesis-Driven Threat Hunting
Structured threat hunts built on intelligence-led hypotheses starting from the latest adversary TTPs targeting your sector, your technology stack, and your geographic region, then systematically testing whether those attack patterns exist in your environment. Each hunt hypothesis is mapped to specific MITRE ATT&CK techniques, ensuring complete coverage across the full kill chain over time.
Malware & Artefact Analysis
Static and dynamic analysis of suspicious files, scripts, and binaries discovered during hunt operations including deobfuscation of PowerShell and living-off-the-land binary abuse, YARA rule development for persistent detection of identified malware families, and sandbox detonation to map complete malware behaviour, C2 infrastructure, and lateral movement mechanisms.
Lateral Movement & Persistence Hunting
Proactive hunting for indicators of established attacker presence scheduled task abuse, service installation, registry run key persistence, WMI subscriptions, DCSync operations, Pass-the-Hash artifacts, and anomalous service account usage that are the hallmarks of a threat actor who has been in your environment long enough to establish footholds across multiple systems.
Threat Intelligence-Led Hunting
Hunt operations informed by finished threat intelligence sector-specific actor reports, government advisories from CISA, NCSC, and ASD, dark web monitoring, and SourceMash's proprietary intelligence platform that tracks the infrastructure, tooling, and targeting patterns of over 400 tracked threat actors relevant to our clients' industries and geographies.
Data Exfiltration & Insider Threat Hunting
Proactive detection of slow, low-volume data exfiltration that automated DLP tools miss hunting for anomalous cloud storage uploads, unusual email attachment volumes, encrypted channel abuse, and the behavioural patterns associated with both malicious insiders and compromised privileged accounts staging data prior to exfiltration.
Hunt Outcomes & Detection Engineering
Every threat hunt produces permanent security improvements not just a report. Hunt findings are operationalised into new SIEM detection rules, EDR custom IOAs, and updated response playbooks so the next attacker using the same technique is caught automatically. Your detection coverage improves measurably with every hunt cycle, creating a compounding security dividend over time.
How Often Should You Threat Hunt? More Often Than You Think.
The average dwell time for an attacker in an enterprise environment before detection is 197 days. Monthly proactive threat hunts cut this to a fraction because our hunters are looking for what automated tools are architecturally incapable of flagging. Even organisations with mature SOC capabilities and leading EDR platforms benefit from regular threat hunting, because no detection rule catches everything, and threat actors constantly evolve their techniques to stay below the alert threshold. We will recommend a hunt cadence and scope matched to your risk profile, sector threat landscape, and existing detection maturity.
Threat Hunting Core Capabilities
Our MDR Onboarding & Delivery Process
A structured, low-disruption onboarding that gets your environment under continuous expert monitoring in days not months and continuously improves detection coverage over time.
Environment Discovery & Risk Assessment
We begin with a structured environment discovery mapping your technology estate, data flows, critical assets, existing security controls, and compliance obligations. Our analysts conduct a rapid risk assessment to identify your highest-priority monitoring gaps, the threat actors most likely to target your sector, and the quick-win detection improvements that deliver immediate risk reduction before full onboarding completes.
Log Source Onboarding & Integration
Systematic onboarding of all log sources into your SIEM endpoints, firewalls, cloud platforms, identity providers, email, and application logs with data quality validation, parsing rule development, and normalisation to a common event schema. We deploy lightweight agents where required and leverage agentless collection where possible to minimise operational impact on production systems.
Baseline & Detection Rule Tuning
A critical 30-day baselining phase during which our analysts learn the normal behaviour of your environment establishing user and entity baselines, normal traffic patterns, legitimate scheduled tasks, and authorised admin tool usage. Detection rules are tuned against this baseline to suppress the false positives that cause alert fatigue and allow genuine threats to be missed in the noise.
SOC Handover & Playbook Activation
Full handover of your environment to the SourceMash 24/7 SOC with dedicated analyst assignment, escalation path establishment, communication channel setup via Slack, Teams, or email per your preference, and activation of your tailored response playbooks covering your environment's specific technologies, business context, and authorised response actions.
Active Monitoring, Detection & Response
Continuous 24/7/365 monitoring with a mean time to detect under 14 minutes and a mean time to respond under 30 minutes for critical severity alerts. All alerts are triaged, investigated, and either closed with documentation or escalated with full context so your team never receives a raw alert without analyst assessment, recommended action, and business impact context attached.
Continuous Improvement & Monthly Reviews
Monthly service reviews covering detection coverage metrics, alert volumes and trends, hunt activity summary, threat landscape briefings specific to your sector, and a forward-looking improvement agenda. Detection coverage expands every month through new rule development, hunt-derived detections, and threat intelligence integration your security posture compounds over time rather than stagnating.
Our MDR Technology Ecosystem
We operate across the world's leading SIEM, EDR, threat intelligence, and SOAR platforms integrating with your existing security stack rather than forcing replacement, and bringing analyst expertise to make those tools perform at their full potential.
Certified. Trusted. Accredited.
Our MDR team holds the most rigorous certifications in information security giving you confidence that the analysts protecting your organisation have demonstrated their expertise under the most demanding testing regimes in the field.
Latest from SourceMash
Perspectives, research, and practical guidance from our enterprise technology experts.
What Our Clients Say
Trusted by CISOs, security teams, and boards across manufacturing, financial services, and healthcare here's what security leaders say about partnering with SourceMash MDR.
SourceMash MDR found a Conti affiliate who had been in our OT network for six weeks completely below the threshold of our own tooling. They contained it before a single machine was encrypted. That engagement alone justified five years of MDR spend. The quality of their analysts and their speed of action is simply unlike anything we had seen from previous providers.
We had a nation-state BEC campaign targeting our CFO that SourceMash caught in eleven minutes. Their identity monitoring picked up an impossible travel indicator that our own security team had set to low priority. The $4.2M wire didn't go out. I have never been more grateful for a vendor in my career.
The threat hunting programme has transformed how our board thinks about cybersecurity. We now have a monthly hunt report that speaks in plain English, maps findings to real risk, and shows measurable improvement in detection coverage quarter over quarter. It is the most tangible security deliverable I have ever put in front of executives.