ISA Security Audit
ISA audit evaluates your information security controls against VDA-ISA catalog requirements. Whether you're pursuing TISAX certification or strengthening your security posture, our ISA audit identifies gaps and provides actionable remediation roadmap.

What is an ISA Security Audit?
An ISA (Information Security Assessment) audit evaluates your organization's information security controls against the VDA-ISA catalog — the baseline required by automotive OEMs for all Tier 1 and Tier 2 suppliers pursuing TISAX certification. nFlo conducts a complete assessment covering all VDA-ISA control areas (information security, prototype protection, and data protection), produces a scored gap analysis with severity ratings for every non-conformity, and delivers a prioritized remediation roadmap so you can enter the official certification audit fully prepared and avoid the costly failed attempts and lost contracts that result from poor preparation.
Information security gaps block automotive contracts
Comprehensive ISA assessment and remediation
Assessment
Evaluate against VDA-ISA catalog requirements
Gap Analysis
Identify non-conformities and risks
Remediation
Actionable plan to close gaps
Failed TISAX Audit Due to Poor Preparation
An automotive supplier attempted TISAX certification without proper ISA assessment. Result: 47 non-conformities identified, audit failed, 6-month delay in certification. Lost contract opportunity worth €2M while competitors with TISAX Label won the business.
Without proper ISA assessment:
- Unexpected findings during certification audit
- Failed audits and costly re-assessments
- Delayed market access and lost contracts
- Reactive fixes instead of systematic improvement
ISA Assessment That Prepares You for Success
We conduct thorough ISA assessment using the VDA-ISA catalog methodology. You know exactly where you stand and what needs to be fixed before the certification audit.
What you get:
- Complete VDA-ISA catalog assessment
- Current maturity level evaluation
- Detailed gap analysis with severity ratings
- Evidence review and documentation assessment
- Technical controls verification
- Remediation roadmap with priorities
- Pre-audit readiness validation
Who Is It For?
This service is for you if:
- You’re preparing for TISAX certification
- Automotive OEM or Tier 1 requires ISA compliance
- You want to assess your information security maturity
- Previous audit identified gaps you need to address
- You’re entering automotive supply chain
VDA-ISA Catalog Areas
Information Security
Core security controls based on ISO 27001:
- Security policies and organization
- Asset management
- Access control
- Cryptography
- Physical security
- Operations security
- Communications security
- System development
- Supplier relationships
- Incident management
- Business continuity
- Compliance
Prototype Protection
Additional controls for handling prototypes:
- Physical protection of prototypes
- Digital prototype data protection
- Transport and logistics security
- Testing environment security
- Photography and recording controls
Data Protection
GDPR and privacy requirements:
- Data processing principles
- Data subject rights
- Data protection organization
- Technical and organizational measures
Assessment Levels
Level 1 (AL1)
- Self-assessment
- For non-critical information
- Internal use only
Level 2 (AL2)
- Third-party assessment
- Standard protection requirement
- Most common for suppliers
Level 3 (AL3)
- Extended third-party assessment
- High protection requirement
- For prototypes and highly sensitive data
Deliverables
ISA Assessment Report
- Maturity level per control area
- Non-conformity list with severity
- Evidence gaps identified
- Comparison to target level
Gap Analysis
- Detailed findings per VDA-ISA control
- Root cause analysis
- Risk assessment
- Compliance percentage
Remediation Roadmap
- Prioritized action items
- Resource requirements
- Timeline to target maturity
- Quick wins identification
Related Glossary Terms
Learn more about key concepts related to this service:
Contact your account manager
Discuss ISA Security Audit with your dedicated account manager.

How we work
Our proven service delivery process.
Scoping
Define assessment scope and objectives
Documentation Review
Evaluate policies, procedures, controls
Technical Assessment
Verify implementation of security controls
Gap Analysis
Map findings to VDA-ISA requirements
Remediation Plan
Prioritized roadmap to compliance
Benefits for your business
What you gain by choosing this service.
TISAX Readiness
Prepare for successful certification audit
Security Improvement
Strengthen your information security posture
Contract Eligibility
Meet automotive supplier requirements
Clear Roadmap
Know exactly what to fix and when
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Read more →Frequently Asked Questions
Common questions about ISA Security Audit.
How long does a VDA-ISA assessment take and what does it cover?
The assessment takes 2-4 weeks. It covers gap analysis against the VDA-ISA catalog requirements, maturity level evaluation for each control area, evidence and documentation review, technical controls verification, and a prioritized remediation roadmap.
What Assessment Level (AL) should we target?
Most automotive suppliers need AL2 (third-party assessment for standard protection). AL3 is required for handling prototypes or highly sensitive data. We help determine the appropriate level based on your OEM requirements and the type of information you handle.
Does the ISA assessment also fulfill NIS2 requirements?
Partially. VDA-ISA shares many controls with ISO 27001, which is recognized under NIS2. Our assessment identifies gaps against both the VDA-ISA catalog and relevant NIS2 requirements for your sector.
Do you help with remediation and TISAX certification preparation after the audit?
Yes. We don't leave you with just a report. We deliver required documentation templates (policies, procedures), support technical remediation implementation, and prepare your organization for the certification audit by an accredited body.