
In a decisive escalation of EU tech regulation, the European Commission has opened market investigations into Amazon Web Services (AWS) and Microsoft Azure under the Digital Markets Act (DMA), seeking to determine whether their cloud offerings function as “gatekeeper” services and whether the DMA’s toolbox can be applied effectively to the cloud computing market; the Commission said it aims to complete the inquiries within 12 months, and Microsoft has publicly stated it will cooperate with the probe.
Background
Cloud infrastructure now powers everything from consumer apps to national digital services, and a handful of global hyperscalers—chiefly Amazon, Microsoft and Google—dominate supply. The DMA, which reached full force earlier in 2024, was designed to place ex‑ante obligations on dominant digital platforms designated as “gatekeepers” to prevent self‑preferencing, improve interoperability, and reduce lock‑in. The Commission’s decision to investigate AWS and Azure brings cloud infrastructure squarely into that regulatory frame for the first time at scale. This move follows intense, multi‑jurisdictional scrutiny of cloud market structure. The UK’s Competition and Markets Authority (CMA) has previously flagged Microsoft and AWS for holding up to roughly 30–40% of some cloud markets and recommended further action—observations that helped crystallize the regulatory calculus in Brussels. The CMA’s provisional findings pointed to high switching costs, egress charges and licensing arrangements that may deter customers from migrating workloads between providers. At the same time, European policymakers have become increasingly focused on “digital sovereignty” and systemic resilience as AI and large‑scale workloads drive unprecedented demand for specialized cloud compute. That strategic context — concerns about outages, concentration risk and dependence on non‑EU providers — is a major reason cloud is now under the DMA microscope.What the Commission is investigating
1. Gatekeeper designation for cloud services
The DMA’s gatekeeper framework sets quantitative thresholds and a qualitative test for services that can control access between businesses and end users. The Commission’s probes will assess whether AWS and Azure meet those functional and economic criteria for cloud infrastructure services — effectively asking whether IaaS and other cloud platform offerings should be treated like other core platform services already covered by the DMA. Reuters reported the Commission has opened two separate market investigations—one for AWS and one for Azure—alongside a third study into whether the DMA is fit for purpose in this domain.2. Specific conduct: portability, self‑preferencing and pricing structures
Investigators will probe conduct that creates switching friction and tilts competition in favour of the incumbent provider. Typical focus areas include:- Data portability and egress fees — charges or technical friction that make leaving a provider expensive or slow.
- Licensing and pricing practices — whether Microsoft’s licensing or pricing makes it cheaper to run Microsoft workloads on Azure than on rivals’ clouds.
- Self‑preferencing and bundling — whether hyperscalers give preferential access, feature parity, or performance to their own managed services and marketplaces.
- Interoperability and APIs — lack of standard interfaces or proprietary control‑plane primitives that lock workloads to one stack.
3. The DMA’s suitability for cloud
A distinct part of the Commission’s work is methodological: testing whether the DMA’s consumer‑facing gatekeeper rules can be sensibly adapted to enterprise cloud infrastructure. The DMA was drafted around consumer and business‑facing core platform services (search, app stores, social networks, etc., and mapping its metrics—active users, revenues in the EU—onto enterprise cloud contracts and IaaS technical primitives is non‑trivial. The Commission’s third investigation will evaluate whether tailored DMA obligations are required or whether other competition and sectoral tools are more appropriate.Why this matters: stakes for customers, competitors and the EU tech ecosystem
Cloud is now critical economic infrastructure. The issues at hand are not abstract policy disputes; they affect the cost, security and strategic autonomy of governments, telecoms, banks, healthcare systems and countless businesses. Key practical stakes include:- Switching costs and vendor lock‑in — If egress fees and proprietary managed services make migrations costly, public and private buyers can become captive to a small set of suppliers, reducing bargaining power and slowing innovation. The CMA and other authorities have documented how these features raise switching frictions.
- AI and compute concentration — The largest AI workloads require specialized hardware and integrated stacks. When a few hyperscalers control most such capacity, they also shape the business and technical terms of access to leading AI infrastructure. Regulators are concerned this dynamic will cement market power in an AI era.
- Digital sovereignty and resilience — European public sector customers want verifiable guarantees around data residency, access controls and legal jurisdiction. Regulators worry that marketing claims about “sovereign” or in‑region processing can mask cross‑border flows and legal exposure.
How the DMA could change cloud markets (possible remedies)
If the Commission finds cloud services meet the gatekeeper test — or identifies DMA‑style remedies that are applicable — the possible toolkit includes strong, ex‑ante obligations:- Mandated interoperability and standard APIs — forcing non‑discriminatory access to critical control‑plane functions and interfaces used to deploy, monitor, and port workloads.
- Restrictions on self‑preferencing — barring practices that give platform‑owned offerings unfair operational or commercial advantages in marketplaces and managed services.
- Data‑portability and egress rules — capping or standardizing egress fees and mandating audit‑grade migration tooling to reduce switching friction.
- Transparency, audits and remedies — obligation to publish technical and commercial terms, submit to independent audits, and face fines up to 10% (or higher for repeat breaches) of global turnover for non‑compliance under the DMA’s enforcement scheme.
Independent perspectives: what big players and challengers are saying
Hyperscalers publicly defend their market practices as investments in resilience, scale, and innovation. Microsoft has said it will cooperate with the Commission’s inquiry, signaling willingness to engage constructively even as it contests some regulatory narratives. AWS and other large providers typically argue that scale yields security, performance, global reach and lower costs for customers. Reuters covered Microsoft’s stated readiness to participate in the probe. Smaller cloud providers, European sovereign cloud advocates, and some large customers argue that entrenched market power, pricing differentials and proprietary primitives reduce contestability. UK regulators and Google Cloud spokespeople have echoed these concerns in prior public filings and statements, which helped push the issue onto the Commission’s agenda. Industry groups warn, however, that heavy‑handed rules could fragment markets and unintentionally disadvantage European buyers that currently rely on non‑EU providers for performance or cost reasons. These trade‑offs are central to the policy debate.Risks, unintended consequences and legal complexity
Risk 1 — Overreach and fragmentation
Mandated data‑localization, rigid interface rules or forced code changes could fragment global cloud operations, increase costs, and reduce economies of scale that underpin many cloud benefits. Industry submissions to Commission consultations have argued that poorly calibrated rules might “edge foreign providers out” of EU procurement and harm competitiveness.Risk 2 — Enforcement complexity and technical precision
Cloud control‑planes and proprietary managed services are deeply technical; enforcing non‑discrimination or interoperability obligations will require granular, technical standards (APIs, SLAs, telemetry, control‑plane behaviours). Regulators may lack the immediate technical levers to monitor complex runtime behaviours without sustained, expert engagements and audit frameworks. The Commission’s DMA compliance workshops show it’s already taking technical input, but the adaptation will be resource‑intensive.Risk 3 — Slower innovation or higher costs
If gatekeeper obligations reduce feature differentiation or force decoupling of tightly integrated services, hyperscalers might slow deployment of new managed capabilities or raise prices to cover compliance costs. That could harm smaller cloud customers who currently benefit from integrated, low‑cost offerings. The counterbalance is that more open competition could spur alternative innovation over time.Practical implications for IT buyers and procurement teams
The investigations already change procurement risk profiles. Public and private buyers should act now to reduce exposure and preserve options:- Review contractual exit rights and negotiate robust egress commitments, including pricing caps and data‑transfer SLAs.
- Require independent audit rights and external attestation of data residency, key management and control‑plane practices.
- Insist on customer‑managed encryption keys (bring‑your‑own‑key, BYOK) and explicit language about key locality, rotation and revocation.
- Validate telemetry and support flows to confirm whether logs, backups and metadata remain under asserted jurisdictional controls.
- Plan for multi‑cloud portability by limiting use of deeply proprietary managed primitives for critical workloads, or encapsulating them behind abstraction layers.
- Establish “runbook” migration plans and test them periodically so exit is operationally feasible, not just contractual.
Timeline and probable outcomes
The Commission has set a 12‑month target to conclude the probes—a relatively rapid window for market investigations of this depth. That timeline suggests the Commission aims to move from fact‑gathering to a policy decision promptly, whether that decision is designation, tailored obligations, or referral to other instruments. Reuters reports the 12‑month target and Microsoft’s willingness to contribute. Possible outcomes include:- No DMA designation but competition measures — the Commission could find the DMA is not the right instrument and instead use competition law or sectoral rules to remedy specific harms.
- Designation of cloud services or providers as gatekeepers — triggering DMA obligations and potential fines for future non‑compliance.
- Tailored remedies or negotiated undertakings — a middle path where the Commission imposes technical and contractual requirements adapted to cloud realities.
Critical assessment: strengths and blind spots of the Commission’s approach
Strengths
- Proactive systemic focus — treating cloud as strategic infrastructure recognizes real systemic risk in concentration and outage exposure.
- Ex‑ante framing — the DMA framework — if applied appropriately — could prevent lock‑in mechanics before harms calcify, protecting future innovation and procurement flexibility.
- Political traction — the Commission has enforcement experience under the DMA and the credibility to impose significant remedies if breaches are found.
Blind spots and challenges
- Fit of DMA to enterprise services — the DMA’s consumer‑oriented metrics and remedies are not a natural fit for complex enterprise contracts and technical architectures; careful tailoring will be essential.
- Technical enforcement capacity — ensuring compliance with technical interoperability at runtime will demand new audit models, standards and likely industry collaboration.
- Risk of chilling investment — over‑prescriptive remedies could reduce incentives for hyperscalers to invest in regional capacity or specialized AI accelerators, ironically weakening Europe’s cloud capacity if rules are applied without nuance.
What stakeholders should watch next
- Commission statements and non‑confidential decisions — the Commission will publish updates as probes progress; watch for technical annexes or requests for information that clarify the Commission’s theory of harm.
- Industry engagements — DMA compliance workshops, consultation responses and national regulator filings will reveal where political and technical pressure points lie.
- Parallel national remedies — the CMA and other national competition authorities may pursue complementary measures, increasing regulatory coordination or divergence.
- Customer procurement updates — expect large public buyers to revise cloud procurement rules to demand more portability and sovereignty assurances.
Conclusion
The European Commission’s decision to probe Amazon Web Services and Microsoft Azure under the Digital Markets Act marks a watershed moment for cloud regulation: it brings the EU’s strongest ex‑ante digital law to bear on the infrastructure layer that underpins today’s AI and cloud economy. The inquiries aim to determine both whether leading cloud platforms should be designated as DMA gatekeepers and whether the DMA’s instruments can be adapted to address cloud‑specific market failures. While the move has the potential to reduce lock‑in, improve portability and bolster competition, it also raises complex technical, legal and geopolitical questions about enforcement, market fragmentation and investment incentives. For IT leaders and procurement teams, the immediate implication is clear: strengthen contractual exits, demand stronger audit and key‑management controls, and design workloads for mobility now—because the regulatory and competitive landscape is shifting rapidly, and the outcome will influence cloud strategy for years to come.Source: Devdiscourse EU Probes Amazon and Microsoft Over Cloud Dominance | Technology
