90% off every service for founding clients

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Hartkeep

Security that's engineered — not paperwork.

We do the hands-on technical work that stops attackers: understanding who is likely to target you, detecting them early, hunting for what slipped through and automating the response. We don't sell compliance checklists or regulatory paperwork — and if you simply need a straight answer on a security question, you can book an hour with us.

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06 / Defend
Services
8
Pricing
Fixed, in GBP
Launch discount
90% off
01What we do
01

Threat intelligence

Who targets organisations like yours, how they operate and what that means for your defences — mapped to MITRE ATT&CK.

02

Detection engineering

High-fidelity detections for your SIEM and EDR, written as code, tested against real techniques and tuned to your environment.

03

Threat hunting

Proactive, hypothesis-led hunts for attackers your tools have missed. Every hunt leaves new detections behind.

04

Security automation

Playbooks that triage alerts, enrich investigations and contain threats in minutes, not hours.

05

Attack surface & hardening

See what attackers see, then lock down websites, cloud and email against the most common attacks.

06

AI security

Prompt-injection, data-leakage and agent-permission testing for AI features before they reach customers.

Ideal if…

  • You have security tools but aren't sure they'd catch a real attack
  • Your security team is stretched thin by alerts
  • You've had a scare and want to know you're clean
  • You're building AI features and need them tested

Tools & platforms

We work with what you already have wherever possible, and recommend changes only when they pay for themselves.

Microsoft SentinelMicrosoft DefenderSplunkElasticGoogle SecOpsCrowdStrikeSigmaKQLSPLYARAMITRE ATT&CKTinesPython

Consultation

Consultation on any security matter

A suspicious login, a supplier's security questionnaire, a tooling decision or a second opinion during an incident — book an hour with a security engineer and get a clear, practical answer.

Book a security consultation · ≈US$20/session

Scope

What we don't do

  • Compliance certification, audits or attestations (ISO 27001, SOC 2, PCI DSS, Cyber Essentials)
  • Regulatory or legal advice, or acting as your data protection officer
  • GRC policy-writing and governance programmes

We're happy to work alongside your compliance advisers and auditors on the technical side.

02Pricing

Security, fixed-price.

Full catalogue →
  • HK-SEC-01Within 3 business days
    ≈US$200/session≈US$20/session
  • HK-SEC-021–2 weeks
    ≈US$1,995≈US$200
  • HK-SEC-035–7 days
    ≈US$1,060≈US$105
  • HK-SEC-042–3 weeks
    ≈US$4,625≈US$460
  • HK-SEC-052–3 weeks
    ≈US$3,955≈US$395
  • HK-SEC-062–4 weeks
    ≈US$3,955≈US$395
  • HK-SEC-071 week
    ≈US$1,060≈US$105
  • HK-SEC-08Ongoing
    ≈US$1,675/mo≈US$170/mo

USD prices are indicative conversions. All work is quoted and invoiced in GBP.

03Questions

Common questions.

01Do you do penetration testing?

Our focus is defensive engineering — detection, hunting, intelligence and automation — plus non-intrusive attack surface reviews. Where you need accredited penetration testing, we can scope it and work alongside a testing provider.

02We think we've been breached. Can you help?

If you have cyber insurance, call your insurer's incident line first — many policies require it. We can provide technical consultation, threat hunting and detection support alongside your incident responders.

03Do you need access to our systems?

For hunting and detection engineering we usually need read access to your security tooling, agreed in writing beforehand. We only ever work on systems you're authorised to approve, under a clear written scope.

Start a project

Ready when you are.

A free 30-minute call, a fixed price and a clear plan — with launch pricing locked in.

Start a projectBrowse the catalogue

Or email hello@hartkeep.com