ISO 27001 Penetration Testing
ISO 27001 requires evidence that your technical controls work. Our manual testing and reporting support Annex A control validation and give your ISMS the assurance auditors look for.
What is ISO 27001 Penetration Testing?
ISO 27001 requires evidence that your technical controls actually work. Our manual testing and reporting support Annex A control validation and give your ISMS the technical assurance certification bodies look for.
ISO 27001 is built on demonstrating that your controls actually work, and several Annex A controls point directly at technical testing. A penetration test provides the independent, evidenced validation certification bodies look for — and, done well, it does more than tick a box: it finds the real weaknesses your ISMS exists to manage and feeds them back into your risk treatment.
ISO 27001 testing also strengthens the part of your ISMS auditors probe hardest: evidence that risk treatment works in practice. A control documented in a Statement of Applicability means little without proof it's effective, and an independent penetration test is the most credible proof you can offer that your technical controls do what your risk assessment assumes.
ISO 27001 Penetration Testing is a manual, exploit-driven assessment: real people attacking your target the way an adversary would, then proving each finding with a working proof of concept. It is not an automated scan with a logo on it — the point is to find and demonstrate the issues that actually put you at risk, and hand your team a clear plan to fix them.
Why it matters
Regulators and auditors increasingly expect evidence of real security testing, not a checkbox. A credible penetration test both satisfies the requirement and genuinely reduces the risk the regulation exists to address.
A iso 27001 penetration testing engagement replaces guesswork with evidence. Instead of hoping your controls hold, you get a ranked, reproducible picture of where they don’t — before someone hostile finds the same gaps.
Industries & use cases
ISO 27001 testing suits organisations pursuing or maintaining certification across every sector, and is often expected by enterprise customers and partners as proof of a working ISMS.
What we test
Manual, exploit-driven coverage focused on real impact — not scanner noise.
- Technical control validation
- External and application testing
- Access control and configuration
- Evidence mapped to Annex A
- Risk-rated, actionable findings
- Free remediation retest
Signs you should run a iso 27001 penetration testing
If any of these apply, testing is overdue.
- You're certifying or recertifying to ISO 27001
- Auditors want evidence of technical control effectiveness
- Customers require proof of a working ISMS
- You've had significant change since your last test
- You want testing to feed real risk treatment
Common vulnerabilities we find
The issues that show up again and again in iso 27001 penetration testing — and the ones that actually get exploited.
Ineffective technical controls
Annex A controls present on paper but bypassable.
External & application exposure
Findings that weaken your risk treatment.
Missing evidence
No independent test to support certification.
Gaps in vulnerability management
Unpatched or unmanaged systems contradicting your control claims.
Access-control weaknesses
Authorization gaps that undermine multiple Annex A controls at once.
Ineffective network controls
Segmentation or filtering that doesn't hold in practice.
Weak cryptographic controls
Encryption or key management not meeting your own policy.
Configuration and hardening gaps
Systems diverging from your defined secure baselines.
Example attack chain
Real impact rarely comes from one bug — it comes from chaining several. A representative example:
Why choose webhook.press
Attacker mindset
We’re offensive security people who also build the free tools bug-bounty hunters use daily. We test the way real adversaries do — and prove it.
No scanner theatre
You get findings a human exploited and verified, ranked by real business risk — not an unfiltered tool dump padded to look thorough.
Fixed price, free retest
A clear quote after scoping, a report your team and auditors can use, and a free retest to confirm the fixes hold.
Our methodology
A structured, transparent process aligned to OWASP and PTES — with a named point of contact throughout.
Scoping & rules of engagement
We agree the exact targets, depth, timing and constraints for your iso 27001 penetration testing, and set clear rules of engagement so testing is safe and predictable.
Reconnaissance & mapping
We enumerate the full attack surface — endpoints, roles, technologies and trust boundaries — and threat-model where an attacker would focus.
Manual testing & exploitation
We attack by hand, verifying and chaining weaknesses into real impact. Automated tooling supports coverage; humans find the logic and authorization bugs it can’t.
Analysis & risk rating
Each finding is validated, rated by real business risk rather than raw scanner severity, and de-duplicated so you get signal, not noise.
Reporting
You receive an executive summary for leadership and a technical section with reproducible PoCs, evidence and concrete, stack-specific remediation.
Free retest
After you remediate, we re-test the closed findings to confirm they are actually fixed — at no extra cost.
What you get
Reproducible PoCs
Every finding ships with a working proof and step-by-step reproduction your engineers can replay and verify.
Risk-ranked findings
Prioritised by real business impact, so you fix what matters first instead of drowning in low-severity noise.
Actionable remediation
Concrete, stack-specific fixes and guidance — not generic “apply best practice” filler.
Free retest
We re-check the closed findings after remediation and confirm they’re resolved.
The report is written for two audiences at once: an executive summary that a non-technical stakeholder can act on, and a detailed technical section — findings, evidence, CVSS and reproduction — that your developers and auditors can use directly.
Manual testing, not just a scan
Automated scanners are fast and useful for coverage, but they only find patterns they already know, and they flood you with false positives. They cannot understand your business logic, chain several small issues into a breach, or tell you which alert actually matters. Our iso 27001 penetration testing is led by experienced testers who exploit findings by hand and rank them by the damage they’d really do — the difference between a 300-page tool dump and a short list of things worth fixing.
Standards & compliance
Our iso 27001 penetration testing reports are written to support the frameworks your auditors and customers care about — including SOC 2, ISO 27001, PCI DSS, HIPAA, GDPR, and the EU’s NIS2 and DORA. Each engagement produces clear, independent evidence of testing with scope, methodology and findings documented the way assessors expect, so the same test both hardens your systems and helps satisfy your obligations.
Frameworks we follow
Recognised methodologies, adapted to your target — never a rigid checklist.
- OWASP — Web Security Testing Guide, ASVS and the API Security Top 10
- PTES — the Penetration Testing Execution Standard
- NIST SP 800-115 — technical guide to security testing
- OSSTMM — Open Source Security Testing Methodology Manual
- MITRE ATT&CK — to frame real-world adversary techniques
FAQ
Does this cover certification needs?
It provides the technical-testing evidence certification bodies expect for the relevant Annex A controls.
Recurring testing?
Yes — annual or per-change testing fits ISO 27001's continual-improvement expectation.
Does this support certification?
It provides the technical-testing evidence certification bodies expect for the relevant Annex A controls.
How often should we test?
Annually and after significant change, in line with ISO 27001's continual-improvement expectation.
Does this map to Annex A controls?
Yes — findings are tied to the relevant Annex A controls to support your certification.
How often should we test?
Annually and after significant change, aligned to continual improvement.
How long does a iso 27001 penetration testing take?
Most focused engagements run one to two weeks depending on scope; we agree the exact timeline during scoping.
Is a retest included?
Yes — after you remediate, we re-check the closed findings to confirm they’re fixed, at no extra cost.
How do you price it?
Per engagement, based on scope and depth — you get a fixed quote after a short scoping call. No cookie-cutter packages.
Why teams trust our iso 27001 penetration testing
Aligned to recognised standards
Testing follows OWASP, PTES, NIST SP 800-115 and MITRE ATT&CK, and reports support SOC 2, ISO 27001, PCI DSS, HIPAA, GDPR, NIS2 and DORA.
Every engagement includes
Reproducible PoCs, risk-ranked findings, concrete remediation, a named point of contact, a free retest, and a summary letter of attestation.
Confidential by default
Work is covered by an NDA, scoped with clear rules of engagement, and data is handled with care throughout — including residency requirements.
Sample report available on request — see our reporting format and depth before you commit. Ask for a sample →
Get a quote for ISO 27001 Penetration Testing
Tell us about the target — we’ll come back with scope and a fixed price. Manual, exploit-driven testing with reproducible proof and a free retest.