ISO 27001 Gap Assessment for Cloud and Regulated Environments
We assess your controls against ISO 27001 Annex A requirements at the infrastructure level, not the documentation level. Gap analysis, remediation roadmap, and audit readiness across AWS, GCP, and Azure.
Services
ISO 27001 Gap Assessment Services
ISO 27001 Control Gap Analysis
Control-by-control assessment against ISO 27001 Annex A. We verify each applicable control against your live cloud infrastructure, IAM policies, encryption configuration, and logging architecture rather than accepting policy documentation at face value.
ISMS Scope Definition
Defining the right ISMS scope is where most ISO 27001 programs go wrong. We work with your engineering and product teams to define a scope that satisfies auditors, reflects your actual service boundaries, and does not create unmaintainable control obligations.
Risk Assessment and Treatment
ISO 27001 requires a documented risk assessment process, not just a risk list. We build a risk assessment methodology aligned with your threat model, score risks using likelihood and impact, and produce a Statement of Applicability that reflects actual decisions, not template defaults.
Policy and Procedure Development
We write policies that describe what your environment actually does. Information security policy, access control policy, cryptographic controls policy, incident management procedures. Each one is reviewed against your infrastructure state so auditors cannot find gaps between what the policy says and what the environment does.
Cloud Infrastructure Control Verification
ISO 27001 Annex A controls covering access control, cryptography, operations security, and communications security all have infrastructure-level implementation requirements. We pull IAM policies, encryption configurations, CloudTrail settings, and network topology directly and verify them against the control requirements.
Audit Readiness Support
We prepare you for Stage 1 and Stage 2 audits by building an evidence library that maps each control to a verifiable infrastructure artifact. Auditors ask questions we have already answered. The goal is no surprises during certification, because we checked everything first.
Coverage
Cloud Infrastructure Verification
AWS
GCP
Azure
Our Approach
ISO 27001 as an Engineering Discipline
Controls verified against live infrastructure
The gap between a policy that says "data is encrypted at rest" and an S3 bucket that actually enforces it is where most ISO 27001 programs fail under audit. We pull IAM policies, KMS configurations, CloudTrail settings, and network topology directly from your environment. What we document in the gap analysis reflects what your infrastructure does, not what your documentation claims.
Framework overlap mapped from the start
If you already have a SOC 2 or HIPAA program, a significant portion of your ISO 27001 Annex A controls are already implemented. We map your existing controls at the start of the engagement so you are not rebuilding what you already have. Our compliance engineering experience across SOC 2 Type I and II, HIPAA, FedRAMP, and PCI-DSS means we can identify the real gaps quickly rather than treating your environment as a blank slate.
Remediation that engineering teams can act on
Our remediation roadmap is sequenced by risk priority and written at the implementation level. For cloud infrastructure gaps, we provide Terraform and CloudFormation guidance alongside the finding. For IAM gaps, we include the specific policy changes required. The goal is to give your engineering team work they can execute rather than observations they need to interpret.
ISO 27001 commonly runs alongside SOC 2 Compliance, HIPAA Compliance, and PCI-DSS Compliance programs. We also pair gap assessments with Cloud Security, Risk Assessment, and Vulnerability Management engagements so remediation work happens where it has the most impact.
Deliverables
What You'll Receive
The Problem
Why Most ISO 27001 Programs Fail Under Audit
Most ISO 27001 programs are built by consultants who understand the framework but have never administered an AWS account. They can write an access control policy. They cannot tell you whether the IAM roles in your production environment actually enforce it. The auditor can, and will, ask.
The second common failure is scope definition. Organizations either define a scope so narrow it excludes systems that clearly handle information assets in scope, or so broad that they create control obligations they cannot sustain. Both problems surface during Stage 1 when it is expensive to fix.
The third problem is the Statement of Applicability. Most SoAs are produced by selecting "applicable" or "not applicable" for each Annex A control without verifying the underlying implementation. An auditor who asks to see the evidence for a control marked as implemented will find either nothing or documentation that does not match the environment.
Common gaps we find during ISO 27001 assessments
FAQ
Common Questions About ISO 27001 Gap Assessment
What is an ISO 27001 gap assessment and what does it cover?
An ISO 27001 gap assessment maps your current security controls against the requirements of the ISO 27001 standard, identifies what is missing or insufficient, and produces a prioritized remediation roadmap. At SiegePal, the assessment covers your ISMS scope, Annex A controls, risk assessment process, cloud infrastructure configuration, IAM policies, encryption architecture, logging, and incident response capability. We verify controls against your live environment, not your documentation.
Does SiegePal certify us for ISO 27001?
No. ISO 27001 certification is issued by accredited certification bodies after a formal Stage 1 and Stage 2 audit. SiegePal prepares you for that audit by identifying control gaps, implementing remediations, developing policies and procedures, and verifying that your environment matches what your documentation claims. We work alongside your chosen certification body, not in place of one.
How long does an ISO 27001 gap assessment take?
Most gap assessments run 8 to 16 weeks depending on the size of your environment, the number of cloud accounts in scope, and the maturity of your existing security program. Larger environments with multiple cloud providers and complex IAM architectures take longer. We scope the engagement after an initial architecture review so you get an accurate timeline before committing.
How does ISO 27001 relate to SOC 2 and HIPAA if we already have those?
There is significant control overlap between ISO 27001, SOC 2, and HIPAA, particularly around access control, encryption, logging, and incident response. If you have an existing SOC 2 or HIPAA program, a meaningful portion of your ISO 27001 controls will already be in place or partially implemented. We map existing controls against ISO 27001 Annex A at the start of the engagement so you understand exactly what still needs to be built, rather than duplicating work already done.
What types of organizations need ISO 27001?
ISO 27001 is most commonly required by enterprise customers during vendor due diligence, by organizations expanding into European markets where it carries regulatory weight, and by SaaS companies pursuing larger enterprise contracts that require a recognized international security standard. It is also increasingly used by GovTech companies and regulated organizations looking to demonstrate a structured information security management system to investors, partners, and auditors.
Book a Call
Get Certified With Controls That Actually Work
Book a free consultation to discuss your ISO 27001 readiness and get a clear picture of what your gap assessment will cover.
Schedule a consultation
Choose a convenient time for a free 30-minute consultation.