AI Infrastructure: Governance Handbook for the CTO
Build, Buy, Hybrid - governed AI infrastructure for the EU AI Act (high-risk obligations from 2 December 2027), NIS2 and the Cyber Resilience Act, whose reporting duties have applied since 11 September 2026. Free PDF download.
A selection from over 5,000 projects in 25 years of software development
What you will find in this handbook
Gartner expects worldwide AI spending of around USD 2.7 trillion in 2026, more than half of it on infrastructure. At the same time, the share of wasted cloud spending is rising for the first time in five years, to 29%, driven among other things by the cost complexity of AI and new cloud services (Flexera, State of the Cloud Report 2026). This handbook shows how to build AI infrastructure that is governed and cost-efficient, and which deadlines bind first: NIS2 already applies, the Cyber Resilience Act reporting duties have applied since 11 September 2026, and the high-risk obligations of the AI Act follow on 2 December 2027.
Why the CTO must lead AI Infrastructure Governance
Shadow AI, the governance gap and the CTO checklist to get started.
Build, Buy, Hybrid: the B/B/H framework
Decision matrix by workload type with hidden costs and hidden risks.
EU AI Act: 7 technical requirements (Art. 9-15) and the deadline table after the Digital Omnibus
Compliance obligations as infrastructure decisions, deployer obligations under Article 26, obligations for general-purpose AI models and a technical checklist.
Security, NIS2, CRA, DORA & Data Sovereignty
NIS2 duties and penalties, the Cyber Resilience Act reporting clock (24 hours, since 11 September 2026), DORA, Data Residency, the CLOUD Act, sovereignty tiers and GDPR compliance for LLM usage.
4 infrastructure patterns in production
Agent Orchestration with agent and MCP security, Document Intelligence, Model Gateway with model lifecycle, Monitoring & Observability.
Infrastructure Readiness Assessment (10 questions)
Where does your infrastructure stand? Self-assessment with score.
Next steps
90-day plan and recommended infrastructure stack.
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5 key figures from the handbook
2.7 tn
USD worldwide AI spending in 2026, around 56% of it on infrastructure
Gartner, forecast of 16 September 2026
29%
of IaaS and PaaS spending wasted - the first increase in five years, driven in part by the cost complexity of AI
Flexera, State of the Cloud Report 2026
42%
fully standardize their cloud operations through a platform team - although 95% have started building one
HashiCorp, State of Cloud Strategy Survey 2024
11 Sep 2026
since then, manufacturers must report actively exploited vulnerabilities within 24 hours
Cyber Resilience Act, Regulation (EU) 2024/2847
15 M
EUR or 3% of worldwide turnover, whichever is higher: maximum fine for breaching high-risk, deployer and transparency obligations
EU AI Act, Article 99(4)
Who is this handbook for?
CTO / VP Engineering
You are responsible for the AI infrastructure strategy and need a framework that combines scalability, compliance and cost governance.
Head of Infrastructure / Platform
You build the platform for AI workloads and need production-ready patterns: Agent Orchestration, Model Gateway, Document Intelligence.
Cloud Architect / DevOps Lead
You decide build vs. buy and need the decision matrix: which workload to self-host, which to run as a managed service?
CISO / Head of Security
You must ensure data sovereignty and need the security stack: Zero Trust, PII screening, encryption, supply chain security.
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