Aligned with NCSC CAF Principle B5 — Resilient Networks & Systems

Cyber Resilience.
Not Just Cyber Security.

We help organisations build genuine cyber resilience: the controls to prevent an incident, the continuity to survive one, and rigorously tested confidence that both actually hold up under pressure.

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Resilience, Broken
Into Three Parts

B5 Cyber delivers cyber resilience preparation through a range of consultancy services and offerings, supported by six key security domains, so you can prevent an incident, keep running through one, and prove, not assume, that you actually can.

01 · PREVENT

Controls

The defensive layer that reduces your attack surface before anything happens, the technology and behaviour that keeps everyday threats out.

EDR MFA Security Awareness AI Security
02 · SURVIVE

Continuity

What keeps the business running when Controls aren't enough on their own, the plan and the recovery path for when something gets through.

Backup & Recovery Incident Response Planning
03 · PROVE IT

Confidence

Controls and Continuity are only theories until they're tested. This is the rigorous, evidence-producing proof that they hold up under real pressure.

Risk Assessment Tabletop Exercises Penetration Testing

Continuity in particular maps to the NCSC's own Cyber Assessment Framework, specifically Principle B5: Resilient Networks and Systems. It's not a coincidence we're built around it.

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B5 are aligned to industry leading frameworks

NIST NIST CSF 2.0
ISO ISO 27001:2022
CIS CIS Controls v8
MITRE MITRE ATT&CK
SOC 2 SM SOC 2 Type II
EU GDPR GDPR
Cyber Essentials Cyber Essentials
CMMC CMMC 2.0
ESSENTIAL 8 Essential Eight
NIST NIST AI RMF
HIPAA HIPAA
NIST NIST CSF 2.0
ISO ISO 27001:2022
CIS CIS Controls v8
MITRE MITRE ATT&CK
SOC 2 SM SOC 2 Type II
EU GDPR GDPR
Cyber Essentials Cyber Essentials
CMMC CMMC 2.0
ESSENTIAL 8 Essential Eight
NIST NIST AI RMF
HIPAA HIPAA

Free Cyber
Benchmark

Cyber maturity is not just for enterprises. B5 believes every organisation, regardless of size, should have a baseline understanding of where they stand, scored against a live community benchmark.

6
Domains scored
2 min
To complete
Free
Instant score
Get Your Free Cyber Benchmark

Endpoint Detection & Response

Multi-Factor Authentication

Security Awareness Training

Incident Response Planning

Backup & Recovery

AI Security

Structured. Transparent.
Results-Oriented.

Every engagement follows a disciplined process designed to surface real risk and deliver measurable outcomes.

01

Discovery & Scoping

We start by understanding your environment, threat model, business context, and compliance obligations, so our work maps directly to your actual risk.

02

Assessment & Analysis

Deep technical testing, tool-assisted and manual. We find what scanners miss. Findings are validated, prioritised, and tied to real-world business impact.

03

Remediation & Hardening

We do not just report, we fix. Detailed remediation guidance, optional hands-on support, and follow-on validation testing to confirm closure.