CASE FILE #04: EU-Kommission: Attack on the Cloud

Why Cloud Security Goes Beyond the Cloud Provider

On March 24, 2026, the European Commission detected a cyberattack targeting cloud infrastructure used by its Europa.eu web platform.

Data was exfiltrated even though the affected platform was hosted in a professionally managed cloud environment.

The incident highlights a key distinction: Cloud Security and Data Security are separate but closely related responsibilities.

1. What Happened?

The cyberattack was detected on March 24, 2026. The European Commission initiated countermeasures and subsequently confirmed that data had been exfiltrated.

The affected infrastructure supported parts of the Europa.eu web presence.

According to official statements, the European Commission’s internal systems were not affected.

2. How Did It Happen?

The Commission confirmed that the affected Europa platform was hosted in an Amazon environment.

During the initial official communications, the exact technical attack method was still under investigation.

The use of an Amazon environment does not, in itself, indicate that a vulnerability in the underlying cloud infrastructure caused the attack.

3. What Data Was Affected?

The European Commission initially confirmed that data had been exfiltrated from the affected websites.

At that point, the full scope of the incident and the specific categories of data involved were still under investigation.

Claims made by attackers or third parties should therefore be clearly distinguished from officially confirmed facts.

4. What Are the Consequences and Risks?

Above all, the incident highlights an architectural risk.

Even a professionally managed cloud environment can become part of a successful attack.

This does not mean that public cloud environments are inherently insecure. It means that organizations must also consider which data could be accessed in plaintext if a cloud application were compromised.

5. Which Traditional Security Measures Are Necessary?

Cloud Security requires Identity and Access Management (IAM), multi-factor authentication (MFA), least-privilege access, Cloud Security Posture Management (CSPM), logging, and monitoring.

These measures should be complemented by vulnerability management and continuous reviews of cloud configurations.

Together, they reduce the attack surface and help prevent unauthorized activity or detect it at an early stage.

6. Why Are These Measures Alone Not Enough?

Traditional cloud security measures protect infrastructure, identities, configurations, and applications.

Encryption at rest is also an important security measure. However, applications must be able to decrypt data to perform certain operations.

If that application-level access path is compromised, information may still be accessible in plaintext, depending on the architecture.

7. How Does Data-Centric Security Help?

Data-Centric Security complements Cloud Security by protecting sensitive information independently of the destination platform.

One approach is Pre-Cloud Encryption: Data is encrypted or tokenized before it leaves the organization’s controlled environment.

This shifts the trust boundary from the cloud infrastructure toward the data itself.

8. How Could eperi sEcure Have Protected the Data?

eperi sEcure can protect sensitive information within supported data flows before it is transferred to a cloud or SaaS environment.

Cryptographic keys can remain under the customer’s control and separate from the destination platform.

Depending on the application and integration, selected application functionality can continue to operate with protected data values.

9. What Is the Key Lesson from the Incident?

Using a professionally managed cloud provider does not eliminate an organization’s responsibility to protect its data.

Cloud Security protects infrastructure and applications. Data-Centric Security complements these layers by protecting sensitive information itself.

The lesson from CASE FILE #04: Cloud Security protects the environment. Data-Centric Security adds another layer of protection for what attackers ultimately want: the data.

The eperi Lesson: Assume Breach. Protect the Data.