Healthcare Data, Azure & Cyber Threats

1. De Situatie

🏥

Hospital NL
Data Owner

💻

ChipSoft HiX
EPD Applicatie

☁️

Microsoft Azure
Public Cloud

"Will I face challenges with legislation and cyber threats?"

The Short Answer:

JA.

⚠️

You face fundamental challenges in data sovereignty, supply chain risk, and ransomware resilience.

The paradigm shift: From "Trust in Contracts" (Microsoft's promises) → "Trust in Technology" (Mathematical certainty).

2. Wetgevende Storm & Dreigingen

Compliance Gap Analyse

Ransomware Resilience

Bescherming tegen 'Double Extortion' (datalekken).

NEN7510:2024

Mitigatie tegen toegang vreemde mogendheden (CLOUD Act).

NIS2

Chain responsibility & Risk distribution.

Schrems II

Technical barriers required, no SCCs.

3. The Urgent Danger: Double Extortion

Modern ransomware does two things: 1. Encrypt systems (business shutdown) and 2. Steal data and threaten publication (data breach/fines). Backups only help against point 1.

SCENARIO: STANDAARD AZURE

Hacker breekt in (Admin Account)

🔓
Toegang tot Data
Hacker ziet leesbare patiëntdata (plain text) of heeft toegang tot sleutels.
📤
Exfiltratie (Diefstal)
Data is copied to hacker servers.
📢
CHANTEERBAAR
"Betaal of we publiceren alles."
Resultaat: Enorme reputatieschade & AVG-boetes.

SCENARIO: AZURE + CHUNK WORKS

Hacker breekt in (Admin Account)

🛡️
Toegang tot... Ruis
Hacker only sees encrypted blobs. Keys are not in Azure.
🧱
Exfiltratie is Zinloos
Hacker steelt onleesbare data (waardeloos).
✅
VEILIG
No data leak. No blackmail opportunity. Hacker leaves empty-handed.

4. De Split-Trust Architectuur

How you remain owner of your data while using the power of Azure.

TRUST ZONE

🏥

Hospital

🔑 HYOK SLEUTELS
(Lokaal Veilig)

Encryptie

⬇️

🛡️

CHUNK WORKS

ZERO TRUST LAAG

On-the-fly Encryptie
Anonimisering
No Latency

Opslag

⬇️

UNTRUSTED ZONE

☁️

Azure Cloud

🔒 DATA CHUNKS
(Onleesbaar)

5. Strategische Keuze Matrix

A comparison of possible routes for a modern hospital.

Scenario	Juridische Status	Ransomware Risk	Toekomstbestendigheid
1. Status Quo (Azure Only)	❌ Risk Not compliant (Schrems II)	🟥 HOOG Gevaar op Datalek & Chantage	📉 LAAG Vulnerable to CLOUD Act
2. Private Cloud (On-Premise/Legacy)	✅ Veilig Volledig NL Beheer	🟧 MEDIUM Dependent on own security team	➖ GEMIDDELD Complex, Duur, Verlies innovatie
3. Azure + Chunk Works (Split-Trust Cloud)	✅ Compliant Conform NEN7510 / EHDS	🛡️ LAAG Data unreadable if stolen	🚀 HOOG Cloud power + Sovereign control
4. Klassiek Hybride (Data On-Prem, App Azure)	⚠️ Grijs Gebied Data 'in use' onbeschermd	🟧 MEDIUM Risk of lateral movement	📉 LAAG Latency issues (HiX performance)
5. Secure Hybrid (Azure + On-Prem + Chunk Works)	✅ Maximaal Veilig Data lokaal + Zero Trust Bridge	🛡️ ZERO TRUST Volledige segmentatie	🚀 FLEXIBEL Safe transition from legacy to cloud