Precursor Security
CREST-Accredited · UK-Based SOC · 24/7/365

Managed SOC, MDR
& Incident Response

UK-based Security Operations Centre services for organisations that cannot afford for threats to go undetected overnight. CREST-accredited. From as low as £900/month.

No sales pressure. A senior analyst will respond within one working day.

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Overview

Managed SOC, MDR, Incident Response
& Threat Hunting

Four integrated defensive capabilities delivered by a single UK-based, CREST-accredited team. No offshore handoffs. No anonymous NOC.

Precursor Security provides 24/7 Security Operations Centre (SOC), Managed Detection and Response (MDR), cyber incident response services, and threat hunting delivered entirely by UK-based, CREST-accredited analysts from our dedicated SOC facility in Newcastle. Our outsourced SOC and SOC as a Service model gives organisations of all sizes access to enterprise-grade detection capability from as low as £900/month, without the cost of building an in-house team.

Building an in-house SOC is hugely expensive. SOC as a Service through Precursor delivers equivalent or greater coverage at a fraction of the cost, with CREST-accredited analysts, 200+ custom-built detection use cases, and a guaranteed UK data residency model that removes data sovereignty concerns.

Executive Summary

Operational Performance You Can Hold Us To

Every SLA below is contractually guaranteed. Not a marketing claim.

Always On
24/7

UK-Based SOC Coverage

Human analyst coverage every hour of every day, from our UK facility. No offshore handoffs, no overnight backlogs.

Retained Clients
Named

Incident Commander

Retained clients have a named CREST-accredited responder on call. One number. Immediate mobilisation.

MITRE Aligned
200+

Detection Use Cases

Custom-built detection rules mapped to MITRE ATT&CK across common and bespoke platforms.

Mapped
Controls
ISO 27001A.8.16 Monitoring
Cyber EssentialsPlus Controls
NIS2Monitoring Measures
DORAICT Monitoring
Closed-Loop Model

Offensive Findings Feed
Directly Into Detection.

Our penetration testers brief the SOC on live attack patterns. Vulnerabilities found in your pen test feed directly into detection rules. The SOC uses MITRE ATT&CK to map coverage. The offensive team tests that coverage. No other UK provider runs this model from a single team.

Explore Offensive Services
Our Services

Four Capabilities, One UK Team

Explore each service in detail. Every capability is delivered by the same CREST-accredited analysts from our Newcastle SOC facility.

Security Operations Centre (SOC)

From £900/month

If your cyber insurer, an auditor, or a client contract requires 24/7 security monitoring, this is what that means. Our UK-based SOC monitors your logs, network traffic, and cloud environments around the clock. When a confirmed threat is identified, a named analyst escalates immediately.

  • 24/7/365 UK-based analyst coverage
  • SIEM management and log ingestion — Microsoft, Sentinel and Elastic SIEMs
  • Compliance reporting for ISO 27001, Cyber Essentials Plus, NIS2
  • No infrastructure investment required

Consider this: If your cyber insurer declines your renewal claim because you could not demonstrate continuous security monitoring was active at the time of the incident, policy exclusions for inadequate monitoring are increasingly common in 2026.

View SOC Pricing & Coverage

Managed Detection and Response (MDR)

Pricing based on endpoint count

You have EDR deployed. We watch it. Precursor analysts monitor your Microsoft Defender, SentinelOne, or CrowdStrike environment 24/7, triaging every alert, eliminating noise, and containing confirmed threats before they propagate.

  • Human analyst triage on every confirmed threat, 24/7/365
  • Threat containment without waiting for your team to respond
  • Works with your existing EDR: no rip-and-replace required
  • Bring Your Own EDR or we deploy our recommended stack

Consider this: If your EDR fires a critical alert at 2 AM on a Bank Holiday weekend and nobody responds, the average dwell time for ransomware operators before payload deployment is 5 days: plenty of time to exfiltrate data before encryption begins.

See MDR Coverage & Tooling

Cyber Incident Response

Retainer & emergency call-outs available

Found encrypted files? Suspicious logins? Active threat actor behaviour? Call us now. CREST-accredited responders available 24/7. Retainer clients have a named incident commander on call. Emergency call-outs available without a prior retainer.

  • Named incident commander mobilised immediately for retained clients
  • Containment, digital forensics, and evidence preservation
  • ICO breach notification support within the 72-hour GDPR window
  • Ransomware negotiation and recovery coordination

Consider this: If you cannot identify and contain the attacker within 72 hours, under UK GDPR you must notify the ICO of a personal data breach. Missing that window carries fines of up to 4% of global annual turnover.

Get an IR Retainer Quote

Threat Hunting

Quarterly engagements available

Attackers operating inside your network can have dwell times as low as 30 minutes before detonating ransomware. Threat hunting finds them before they find your backup servers. Our analysts run hypothesis-driven investigations using MITRE ATT&CK methodology against your environment.

  • MITRE ATT&CK-aligned hunting methodology
  • Credential abuse and lateral movement detection
  • C2 beaconing identification and dark web exposure checks
  • Available standalone or integrated with Managed SOC

Consider this: If an attacker is already inside your network, the time between initial compromise and ransomware deployment can be alarmingly short. Threat hunting finds them before they find your backup servers.

Book a Threat Hunt
Why It Matters

What Does "24/7 Monitoring" Actually Require?

If your cyber insurer, ISO 27001 auditor, or a client contract has asked for "24/7 monitoring": here is what that means in practice.

Log Collection

Collection from your endpoints, firewall, and cloud environments including AWS CloudTrail, Azure Monitor, and Microsoft 365.

SIEM Correlation

A SIEM platform to correlate those logs into meaningful alerts, filtering noise from signal.

Human Analyst Triage

Human analysts available around the clock to review and triage those alerts. Automated tools alone do not satisfy this requirement.

Defined Escalation Path

A documented, tested escalation procedure when a confirmed threat is identified. Including a named contact and response SLA.

Compliance Reporting

Reporting that demonstrates monitoring was active and effective. Required for ISO 27001 A.8.16, Cyber Essentials Plus, DORA, and NIS2.

Antivirus Does Not Count

Antivirus and a perimeter firewall do not satisfy the 24/7 monitoring requirement. Our Managed SOC provides all five components with compliance-ready reporting for ISO 27001, PCI DSS, and NIS2.

Auditor Ready

Which Service Satisfies Each Compliance Requirement?

Use this matrix to map Precursor services directly to the compliance frameworks your auditor requires.

Framework / RequirementSOCMDRHuntingIR
ISO 27001 (A.8.16 Monitoring)-
Cyber Essentials Plus---
DORA (ICT monitoring)
NIS2 (monitoring measures)-
Cyber insurance (24/7 SOC)--
PCI DSS (log monitoring)---
UK GDPR (breach detection)-

Experiencing a breach right now?

CREST-accredited incident responders available 24/7.

Get Emergency IR Support
Service Catalogue

Full Services Catalogue

Comprehensive penetration testing services tailored to your environment.

Defensive Security

Talk to a SOC Analyst, Not a Sales Team

Whether you need 24/7 monitoring, a response retainer, or you are evaluating build vs. buy for your security operations function: the right place to start is a conversation with the analysts who will actually be watching your environment. No discovery calls routed through BDRs. You speak with a senior analyst on the first call.

CREST Triple Accredited|Fixed Price Quotes|Free Scoping Call|UK Based Team

Common Questions About Managed SOC, MDR & Incident Response

Common questions about this service, methodologies, and deliverables.

A Security Operations Centre (SOC) is the facility and team that monitors your entire environment: logs, network traffic, cloud, and endpoints. Managed Detection and Response (MDR) is the service that actively hunts for and responds to threats specifically on your endpoints using EDR technology such as Microsoft Defender, SentinelOne, or CrowdStrike. Most organisations benefit from both: the SOC provides the broad monitoring layer, while MDR delivers rapid endpoint containment. Precursor combines both under a single UK-based team.
Yes. Firewalls and antivirus are preventative but static controls. They stop known threats matched against signatures. A Security Operations Centre (SOC) provides human analysis to detect attacks that bypass these controls entirely, such as credential theft, insider threats, and living-off-the-land attacks that use legitimate tools. Many cyber insurers and frameworks including ISO 27001 and Cyber Essentials Plus now explicitly require active 24/7 monitoring beyond perimeter controls.
For retained clients, a named CREST-accredited incident responder is mobilised immediately when the call comes in. Emergency call-outs are available without a prior retainer for organisations that have not pre-arranged IR services.
Yes. Our Cloud Security Monitoring service connects directly to your cloud APIs including AWS CloudTrail, Azure Monitor, and Microsoft 365 Defender to detect misconfigurations, suspicious login activity, and data exfiltration attempts in real time. Cloud monitoring is included in our full Managed SOC service or available as a standalone engagement.
Managed Detection and Response (MDR) is a service where a third-party analyst team deploys and operates endpoint detection tools (EDR) on your behalf. Rather than just providing software, an MDR provider like Precursor actively monitors alerts 24/7, investigates suspicious activity, and contains confirmed threats before they spread to other systems. The key difference from traditional antivirus is human analysts responding to real incidents, not just automated alerts.
A managed Security Operations Centre (SOC) in the UK typically costs between £900 and £15,000 per month depending on the number of log sources, endpoints, and service scope. Precursor's managed SOC starts from £900 per month and includes 24/7 monitoring and access to UK-based CREST-accredited analysts. An in-house equivalent of three analysts on rotating shifts costs upwards of £210,000 annually in salary alone before tooling costs.
SOC as a Service (SOCaaS) is an outsourced model where a specialist provider delivers the full Security Operations Centre function including people, process, and technology on a subscription basis. It removes the need to recruit, train, and retain a 24/7 analyst team in-house. Precursor's managed SOC is fully UK-based with no offshore components, covering log ingestion, SIEM management, alert triage, and confirmed incident response under a single monthly agreement.
Isolate affected systems from the network immediately: disconnect but do not power down, as powering down destroys forensic evidence. Then call a CREST-accredited incident response firm. Do not attempt to investigate using potentially compromised systems. Preserve all available logs. Under UK GDPR, you have 72 hours to notify the ICO if personal data has been breached. Precursor's emergency incident response line is available 24/7.