ISO 27001 Pentesting for MSPs

ISO 27001 is the international gold standard for information security management, and it’s increasingly required by European clients, multinational enterprises, and any organization selling into regulated markets. The standard requires a documented information security risk assessment, and the auditors from your client’s certification body will want to see technical evidence behind it. That’s where the penetration test comes in.

Where the pentest fits in the ISMS

Clause 6.1.2 of ISO 27001:2022 requires a defined risk assessment process, and Annex A lists 93 controls organized into four themes: organizational, people, physical, and technological. The technological controls (A.8) are where a penetration test does the most work. Controls like A.8.8 (management of technical vulnerabilities), A.8.29 (security testing in development and acceptance), and A.5.7 (threat intelligence) all benefit from real-world testing evidence. Certification bodies expect to see that evidence, not just policy documents.

What our ISO 27001 pentest delivers

• Manual external and internal pentesting performed by OSCP, CEH, and CREST certified pentesters
• Findings mapped to the specific Annex A controls they validate
• Risk-rated report compatible with the client’s existing ISMS risk register
• Methodology documentation aligned with ISO standards your client’s certification body will recognize
• Free remediation testing to demonstrate corrective action. Auditors love closed-loop evidence
• Application and infrastructure testing scoped to the certification boundary

Stage 1 vs Stage 2 audits

Most of our MSP partners schedule the pentest before the Stage 2 audit, when the certification body actually evaluates control effectiveness. Stage 1 is largely a documentation review, but Stage 2 is where weak technical evidence will show. We typically engage four to eight weeks before a Stage 2 to allow time for remediation and a retest, so your client walks into the audit with clean findings.

Why MSPs and vCISOs use us for ISO work

ISO clients tend to be more sophisticated and more demanding. They want a partner who understands the standard, can speak the language of an ISMS, and can deliver evidence that holds up to a certification body’s scrutiny. We do that work behind your brand, channel-only, with the same affordable pricing model that lets you keep margin even on smaller engagements.