ISMS Implementation: From Gap Analysis to ISO 27001 Certification

82% of all cyberattacks exploit known vulnerabilities that a structured framework would have prevented (Verizon DBIR 2024). But which framework fits your industry, company size and regulatory environment? ADVISORI develops your individual cyber security strategy — from gap analysis through framework selection to a prioritised security roadmap.

NIS2 enshrines personal liability of senior management for cybersecurity — with fines of up to EUR 10 million or 2% of global turnover. ADVISORI develops governance structures that clearly define board-level responsibilities, present risks transparently in executive dashboards, and position your organization for demonstrable compliance.

German companies suffered EUR 206 billion in total losses from cyberattacks in 2023 (Bitkom). Only 15% invest proactively in security strategy (PwC). ADVISORI develops your cybersecurity strategy based on a structured maturity assessment — with a clear 3-year roadmap, prioritized measures, and a robust business case for executive leadership and the board.

82% of cybersecurity incidents trace back to organizational weaknesses — missing roles, unclear responsibilities, and gaps in escalation paths. Information Security Governance closes this gap by translating strategic protection objectives into binding structures. As an ISO 27001-certified consulting firm with over 150 specialist consultants, ADVISORI designs tailored governance models based on the Three Lines of Defense principle: operational controls (1st Line), risk management and compliance (2nd Line), and independent assurance (3rd Line). We build your CISO office, define your hierarchical policy framework, and conduct governance maturity assessments that quantify your current state and deliver a prioritized roadmap — audit-proof for BaFin, BSI, and ISO audits.

An effective information security strategy is more than a document — it is the strategic compass for all security decisions in your organization. According to the BSI Situation Report 2025, 68% of companies rate the threat level as high or very high, yet only 23% have a comprehensive security strategy. ADVISORI supports you as an experienced strategic advisor in developing a tailored information security strategy: from maturity assessment through security program roadmap to investment planning. Our CISO strategic advisory connects regulatory requirements (NIS2, DORA, ISO 27001) with your business objectives — making security a business enabler. With over 150 specialist consultants and experience from financial institutions, critical infrastructure, and upper mid-market companies, we deliver no standard concepts, but robust strategies with measurable value.

Security metrics that trigger decisions — not just fill dashboards. We develop strategic KPI frameworks for board reporting, security ROI measurement, and maturity scoring based on ISO 27004, NIST CSF, and CIS Benchmarks.

A policy framework is more than a document collection — it is the strategic foundation of your information security. From the overarching information security policy through topic-specific guidelines to operational work instructions: every level must be aligned, meet regulatory requirements, and function in day-to-day operations. ISO 27001 Annex A Control A.5.1 and NIS2 Article 21 require a hierarchical policy set — but the real challenge lies in strategic design: Which policy architecture fits your organization? How do you ensure policies are lived, not shelved? ADVISORI develops policy frameworks with strategic foresight. We combine ISO 27001, BSI IT-Grundschutz (ORP.1), NIST SP 800-53, and industry-specific requirements into a coherent governance framework. Our approach: policy architecture design, structured lifecycle management, and policy compliance automation — for policies that are audit-proof, clearly written, and sustainably maintainable.

An effective IT security strategy starts not with technology, but with prioritization. We analyze your risk landscape, evaluate the cost and benefit of each measure, and develop a security roadmap that deploys your budget where it delivers the greatest protection. Drawing on experience from financial regulatory audits, critical infrastructure environments, and over 150 consultants.

NIS2, DORA, and the BSI Situation Report 2024 make it unambiguous: perimeter security has failed. 70% of all successful cyberattacks exploit lateral movement within the network — exactly what Zero Trust prevents. We implement Zero Trust architectures in accordance with NIST SP 800-207, continuously verifying every identity, every device, and every data stream. As a BeyondTrust partner, we combine strategic consulting with leading PAM technology — for a security architecture that meets regulatory requirements and measurably reduces attack surfaces.