Get Started

Open-source powered security

Protect Your Business
Without Breaking the Budget

Enterprise-grade security for startups and SMBs. We focus on the attack vectors that matter most—email and identity—using open-source tools that deliver results without the enterprise price tag.

The Problem

Most breaches start with email or stolen credentials

Small businesses are the #1 target for cyber attacks, yet most lack the expertise to configure their cloud environments securely. Enterprise security tools are too expensive, and finding qualified security talent is nearly impossible.

90% of breaches start with phishing or stolen credentials
60% of SMBs close within 6 months of a cyber attack
£165K average cost of a data breach for small businesses
The Solution

Enterprise security at startup prices

Prism Security uses open-source tools to deliver enterprise-grade protection without the enterprise price tag. We focus on the attack vectors that matter most—email and identity—so you get maximum protection for your investment.

What We Do

Comprehensive security services designed for growing businesses.

Managed Cloud Security

Secure your M365 or Google Workspace from day one.

  • Identity & access management
  • Least privilege configuration
  • MFA & conditional access
Learn more

Security Monitoring

24/7 visibility with enterprise-grade detection.

  • SIEM/XDR powered by Wazuh
  • Automated alert triage
  • Phishing analysis & response
Learn more

Security Consulting

Expert guidance when you need it.

  • Managed tool takeover
  • Vulnerability assessments
  • vCISO services
Learn more
Our Approach

Powered by Open Source

We leverage battle-tested open-source security tools used by enterprises worldwide. This means you get the same capabilities as FTSE 250 companies—without the FTSE 250 price tag.

  • Lower costs — No expensive licensing fees
  • Full transparency — Auditable, community-reviewed code
  • No vendor lock-in — You own your security stack
  • Rapid innovation — Constant community improvements

Tools We Use

Wazuh SIEM & XDR platform
n8n Workflow automation
Velociraptor Digital forensics
Nuclei Vulnerability scanning
OpenVAS Security assessment
GoPhish Phishing simulations

How It Works

Getting started is simple. We meet you where you are.

01

Assess

We review your current security posture, cloud environment, and existing tools to understand your needs and identify gaps.

02

Secure

We implement security controls, configure your cloud environment, and deploy monitoring tools—or take over management of your existing stack.

03

Monitor

Ongoing detection and response keeps you protected. We handle alerts, investigate threats, and continuously improve your defenses.

Why Businesses Trust Us

We believe trust is earned through transparency, not testimonials. Here are verifiable facts about how we operate.

UK-Based & Registered

We are a registered UK company. You can verify our details on Companies House at any time.

Certified Professionals

Our team holds industry-recognised certifications including CISSP, CISM, CEH, and cloud security specialisations.

Open-Source Transparency

We publish tools and guidance openly on GitHub. Review our work and methodology before you engage us.

30-Day Satisfaction Guarantee

If you are not satisfied with our initial assessment, we will refund your fee. No questions asked.

Certifications & Expertise

CISSPCISMCEHAWS SecurityAzure Security
Free Resource

Not Ready to Talk Yet?

Start with our free SMB Security Checklist — 15 practical steps you can take today to dramatically improve your security posture. No email required.

Practical, actionable steps
No signup required
Written for startups & SMBs

Ready to secure your business?

Let's discuss how we can help protect your organization with practical, affordable security.