Cybersecurity, Data & Digital Regulation in Greece | EU: A New Compliance and Governance Paradigm

Cybersecurity, Data & Digital Regulation in Greece | EU: A New Compliance and Governance Paradigm

Strategic Legal Insights for Businesses in a High-Risk Digital Environment

The European and Greek regulatory landscape for cybersecurity, data protection and digital governance is undergoing a structural transformation. What was once a technical compliance exercise has now become a core board-level responsibility, a source of liability exposure, and a decisive factor for market competitiveness.

For companies operating in or through Greece, the new framework creates:

  • increased regulatory scrutiny

  • expanded accountability for management

  • cross-border compliance complexity

  • new opportunities for secure digital growth

The latest legislative and institutional developments confirm a clear direction: cyber-resilience is no longer optional, it is a legal, operational and strategic obligation.

Greece’s National Cybersecurity Strategy 2026–2030: From Policy to Binding Governance Expectations

Greece has adopted a comprehensive National Cybersecurity Strategy for 2026–2030, aligned with the evolving EU framework (NIS2, DORA, Cyber Resilience Act).

This is not a policy document of political intent — it is a roadmap that will directly affect corporate compliance obligations, supervisory practice and enforcement priorities.

Core legal and regulatory impact

The Strategy introduces:

  • a whole-of-society governance model

  • mandatory security-by-design and lifecycle risk management

  • national cyber-risk assessment mechanisms

  • structured incident readiness and response frameworks

  • formal vulnerability disclosure policies

For businesses, this means:

✔ stronger supervisory expectations
✔ measurable cyber-maturity requirements
✔ increased audit exposure
✔ higher liability for inadequate governance

Cybersecurity is now clearly positioned as a corporate governance duty, not an IT function.

The Hellenic Cybersecurity Authority Self-Assessment Tool: A New Compliance Benchmark

The introduction of the national web-based cybersecurity maturity self-assessment tool marks a decisive shift toward quantifiable compliance.

With 234 structured control questions, it effectively creates a de facto national baseline for due diligence.

Why this matters for companies

This tool will be used to assess:

  • governance structures

  • risk management mechanisms

  • asset inventory controls

  • system configuration security

  • operational resilience

In practice, it will:

  • shape supervisory audits

  • influence liability assessments

  • affect procurement eligibility

  • become a reference in M&A due diligence

Companies that treat this as a voluntary exercise will be exposed.
Companies that integrate it into their governance framework will gain a competitive advantage.

Whistleblowing and Financial Sector Compliance: The Bank of Greece Framework

The establishment of a formal external reporting channel by the Bank of Greece under the EU Whistleblowing Directive significantly strengthens:

  • regulatory enforcement

  • internal accountability

  • personal liability for executives

The framework provides:

  • strict confidentiality safeguards

  • protected reporting mechanisms

  • structured investigation procedures

For credit institutions and regulated entities, this creates a new litigation and enforcement risk environment, particularly in:

  • prudential supervision

  • governance failures

  • compliance breakdowns

  • internal control deficiencies

Whistleblowing systems are now a mandatory risk-management tool, not a formal policy.

The EU Digital Omnibus Regulation: A Radical Simplification — and a Hidden Compliance Shock

The proposed Digital Omnibus Regulation will reshape the architecture of EU digital law by:

  • amending the GDPR

  • updating the AI Act

  • consolidating the Data Act & Data Governance Act

Strategic implications

This is not merely simplification.

It will require:

  • redesign of existing compliance programmes

  • reassessment of AI governance frameworks

  • restructuring of data-sharing models

  • review of contractual ecosystems

Companies that invested early in compliance will need to re-calibrate.
Companies that delayed will face accelerated regulatory pressure.

This is a once-in-a-decade regulatory reset.

The New EU Cybersecurity Act: Certification, Supply Chains & Market Access

The forthcoming replacement of the 2019 Cybersecurity Act introduces:

  • strengthened ENISA powers

  • faster EU certification mechanisms

  • alignment with NIS2 and the Cyber Resilience Act

  • EU-wide ICT supply-chain risk control

Business impact

Cybersecurity certification will increasingly function as:

  • a market access requirement

  • a public procurement condition

  • a contractual obligation

  • an M&A valuation factor

Cyber-posture will become a commercial differentiator.

Landmark CJEU Ruling: Online Platforms as Joint Controllers

The Russmedia judgment (C-492/23) fundamentally lowers the threshold for becoming a GDPR data controller.

Online platforms must now:

  • proactively screen content for sensitive data

  • verify lawful processing bases

  • demonstrate systemic GDPR compliance

This expands liability for:

  • marketplaces

  • platforms

  • digital intermediaries

  • advertising ecosystems

It signals a transition from reactive to preventive compliance.

What This Means for Corporate Leadership

The new framework transforms cybersecurity and data protection into:

A board-level governance obligation

A core M&A due-diligence parameter

A source of director liability

A competitive advantage for compliant organisations

Companies must move from: formal compliance → operational resilience → strategic digital governance

How Tsamichas Law Firm Supports Clients

Our approach combines:

  • regulatory interpretation

  • corporate governance integration

  • sector-specific compliance architecture

  • litigation and enforcement readiness

We advise on:

✔ NIS2 & DORA implementation
✔ GDPR & AI governance
✔ cyber-incident liability exposure
✔ digital regulatory strategy
✔ M&A cyber due diligence
✔ whistleblowing frameworks
✔ cross-border data flows

Why Early Action Creates Competitive Advantage

In the new EU digital economy:

  • compliance reduces financing costs

  • certification increases market access

  • resilience strengthens valuation

  • governance protects management

Cybersecurity is no longer a defensive exercise. It is a growth, investment and trust strategy.

From Regulatory Burden to Strategic Asset

The current wave of EU and Greek digital regulation is not simply about stricter rules. It marks the emergence of a new model: digitally secure companies will dominate the European market.

Those that act early will:

  • attract investors

  • win public contracts

  • scale cross-border

  • avoid enforcement exposure

Those that delay will face:

  • regulatory sanctions

  • contractual exclusion

  • reputational damage

  • reduced enterprise value

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