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D4C1Security
SOC Active - Monitoring 500+ Systems

Cyber security for
the systems that
can't go down.

D4C1 partners with organizations running critical infrastructure to build security programs that prevent breaches, satisfy compliance, and keep operations running around the clock.

ISO 27001NIST CSFSOC 2 TYPE IIGDPRNIS2PCI DSSHIPAANERC CIPCYBER ESSENTIALSISO 27001NIST CSFSOC 2 TYPE IIGDPRNIS2PCI DSSHIPAANERC CIPCYBER ESSENTIALS
0+
Client Organizations
across 12 countries
0+
Projects Delivered
since founding
0+
Systems Fortified
actively monitored
0%
Client Satisfaction
rolling 24-month avg
About D4C1

We don't sell fear.
We build resilience.

D4C1 was founded for organizations where cybersecurity isn't a checkbox - it's operational survival. We work with energy grids, financial platforms, healthcare networks, and government systems to build security that holds under real pressure.

Our team carries CISSP, OSCP, CISM, and GCIH certifications and operates within ISO 27001, NIST, and SOC 2 frameworks. We measure success by incidents prevented, not reports delivered.

See our services
01

Critical infrastructure focus

We exclusively serve sectors where a breach has cascading consequences, energy, finance, healthcare, and government. That specificity means we know your threat landscape, compliance requirements, and operational constraints before day one.

02

Under 15 min response time

When our SOC flags a live incident, our average time-to-engage is under 15 minutes. We contain first, investigate second, and debrief with clear next steps, not 40-page reports that gather dust.

03

Long-term partnership model

We don't run one-off audits and vanish. D4C1 integrates with your security team as a permanent extension, evolving your program as threats shift and your business grows.

Services

Nine capabilities. One partner.

End-to-end security for organizations where downtime isn't an option and compliance is non-negotiable.

Security Services

24/7 monitoring and detection across your entire environment.

SIEM integration, alert triage, threat containment

Data Privacy

Compliance frameworks that protect data and satisfy auditors.

GDPR, HIPAA, PCI DSS, data classification

Industry Certified

Analysts with the certifications your audit trail requires.

CISSP, OSCP, CISM, GCIH, CEH

Threat Intelligence

Track adversaries targeting your sector in real time.

IOC feeds, dark web monitoring, APT tracking

Security Assessment

Penetration testing and audits with actionable plans.

Network, application, social engineering, red team

Compromise Assessment

Forensic analysis to surface existing breaches.

Memory forensics, log analysis, IOC detection

Incident Response

Rapid containment and recovery when it matters most.

<15 min engagement, containment, eradication, recovery

Cloud Security

Protection across AWS, Azure, and GCP workloads.

CSPM, IAM review, encryption, container security

Security Training

Programs that measurably change employee behaviour.

Phishing simulation, awareness, tabletop exercises
How We Work

Four phases. Continuous protection.

Every engagement follows the same proven methodology, adapted to your sector, scale, and risk tolerance.

01

Assess

Deep-dive into your current security posture, threat landscape, compliance gaps, and operational constraints.

02

Design

Architect a tailored security program - controls, tooling, processes, and response playbooks built for your environment.

03

Implement

Deploy monitoring, harden infrastructure, integrate SIEM, train your team, and run initial penetration testing.

04

Monitor

Continuous 24/7 SOC coverage, threat hunting, quarterly assessments, and program evolution as your risk profile shifts.

FAQ

Common
questions.

Don't see yours? Reach out - we respond within 24 hours.

A centralized team that monitors your environment 24/7. Our SOC combines human analysts with automated detection - SIEM correlation, behavioural analytics, and threat intelligence feeds - to identify and respond to incidents in real time. Your internal team doesn't need overnight shifts or expensive tooling.
Contact

Let's talk security.

Assessment, incident support, or long-term partnership - every engagement starts with a conversation.

Email
contact@d4c1.com
Office
128 City Road, London
Social
@D4C1_official
SOC available 24/7/365
Sales response: under 24 hours