AI defense, thoughtfully engineered

The calm inside the threat landscape.

Fjornsen is a fully managed security layer for websites, customer data and the infrastructure around them — detection, hardening and response run by one team.

Owner-first accessLive telemetryPersistent context
Security analysts monitoring live threat telemetry in a dark operations center

Command center // Live

Human judgment, amplified.

SOC 2 Type II ISO 27001 GDPR HIPAA PCI-DSS NIS2

A complete security posture

One system for the decisions that matter.

From the first suspicious request to the final incident note, Fjornsen keeps every layer legible, responsive and ready to act.

01 / DETECT

See the signal before it becomes noise.

Behavioral intelligence turns ordinary traffic into a living map of what is changing, where, and why.

02 / HARDEN

Security that is quiet by design.

WAF policy, CSRF protection, secure headers, sanitization and rate controls operate as one disciplined layer.

03 / RESPOND

Move at machine speed. Stay in control.

Prioritized incidents, response telemetry and owner alerts help your team act without losing the context.

Operations room with wall-mounted dashboards showing network overview and alert summaries
Blue fibre optic cabling in a dark data centre aisle

Managed services

Everything a modern business needs to stay defensible.

Delivered as a service — no hardware, no new hires, no guesswork. You get the outcome; we run the system behind it.

24/7 managed monitoring

Continuous availability, TLS and header checks on a 30-second cycle with retained history.

Edge WAF & bot control

Adaptive rate limiting, tar-pitting and dynamic rules applied before traffic reaches your origin.

Vulnerability management

Scheduled scanning, dependency review and prioritised remediation guidance for your stack.

Incident response

Documented playbooks, containment support and a 72-hour breach notification commitment.

Data protection

TLS 1.3 in transit, AES-256-GCM at rest, key rotation and least-privilege access by default.

Threat intelligence

IP reputation, dark-web credential exposure and correlated feeds folded into your defence posture.

Dark world map with glowing blue arcs showing global network traffic between major cities

Global coverage

Defence that follows your traffic.

Checks run from multiple regions so an outage in one place never masks a problem somewhere else. Every probe is timestamped, retained and reproducible.

99.99%

Target uptime

<10ms

Edge response

24/7

Signal coverage

AES-256

Data protection

How it works

Four steps from exposed to defended.

  1. 01

    Onboard

    Create your account and tell us the domains, endpoints and data stores in scope.

  2. 02

    Baseline

    We fingerprint normal behaviour, grade your headers and TLS, and record the starting posture.

  3. 03

    Harden

    Policies, rate controls and header fixes are rolled out with a documented change record.

  4. 04

    Operate

    Continuous monitoring, monthly posture reporting and responsive escalation when it matters.

Security engineer typing on a laptop displaying code in a dark room

Human-centered defense

Clarity is a security feature.

The service is built around the way a real operator thinks: what is happening, what matters now, and what should happen next.

  • Continuous monitoring with secure, retained history
  • Encryption in transit and at rest on every record
  • Telemetry that surfaces the signal, not the noise
Read our ISO 27001 alignment
Glowing blue node lattice forming a shield over a dark stone surface

Who we protect

Built for regulated and high-trust environments.

Financial services

PCI-DSS scope reduction and transaction fraud signals.

Healthcare

HIPAA-aligned safeguards and strict access auditing.

E-commerce

Bot mitigation, checkout abuse and credential stuffing defence.

SaaS & platforms

Tenant isolation review, API abuse control and SOC 2 evidence.

Plans

Straightforward, contracted protection.

Every plan includes encryption, monitoring history and a signed data processing agreement. No usage traps.

Essential

£249/ month

For a single production site that needs dependable cover.

  • 1 domain monitored
  • TLS & header assurance
  • Managed WAF baseline
  • Email escalation
Get started

Professional

Popular

£849/ month

For growing teams handling customer data at scale.

  • Up to 10 domains
  • Behavioral threat detection
  • Threat intel & dark-web watch
  • Quarterly posture review
  • 1-hour incident SLA
Get started

Enterprise

Custom

For regulated environments with formal assurance needs.

  • Unlimited scope
  • Dedicated response engineer
  • Forensics & evidence packages
  • ISO 27001 / SOC 2 evidence support
  • Contracted SLA & DPA
Get started

FAQ

Questions we hear before every engagement.

Do you need access to our servers?

No. Fjornsen operates from the edge and from outside-in monitoring by default. Deeper integrations are optional and always scoped in writing.

How quickly can we be protected?

Baseline monitoring and TLS/header assurance are active within an hour of onboarding. Full WAF policy tuning typically completes inside five working days.

Where is our data stored?

Telemetry is held in encrypted storage inside the EEA/UK. Any transfer outside that region relies on Standard Contractual Clauses with a transfer impact assessment.

Are you certified?

Our ISMS is operated in alignment with ISO/IEC 27001:2022. Current certification status, the Statement of Applicability and sub-processor list are available under NDA.

Your next operating layer

Build with a clearer view of risk.

Create your account and bring your website, security controls and operational context into one protected place.

Activate Fjornsen