European Commission Confirms AWS-Hosted Cloud Breach and Data Theft
The European Commission disclosed a cyberattack affecting cloud infrastructure used to host websites on the Europa.eu platform, saying early findings indicate data was stolen from at least one AWS account in its environment. The Commission said it detected the incident on March 24 and took immediate containment measures, while stressing that its internal systems were not compromised and that AWS infrastructure itself was unaffected. It is notifying potentially affected Union entities and continues to investigate the scope and impact of the breach.
Subsequent reporting linked the intrusion to ShinyHunters, which allegedly claimed to have taken more than 350GB of data, including databases, and to still have access to a Commission email server. The cloud breach followed another security incident reported earlier in the year involving European Commission staff mobile devices and a mobile device management environment, with that separate intrusion reportedly associated with exploitation of Ivanti EPMM. Together, the incidents have intensified scrutiny of the Commission’s security posture across both cloud-hosted services and employee device management systems.

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How this story unfolded
6 events from the most recent confirmed update back to the earliest known activity.
ShinyHunters reportedly linked to Commission cloud data theft
Later reporting identified the alleged threat actor as ShinyHunters, which claimed to have stolen more than 350GB of data, including databases, and said it still had access to a Commission email server. This attribution and claimed impact expanded understanding of the March cloud breach.
AWS and Commission say core systems were not compromised
In public statements reported by March 27, 2026, AWS and the European Commission said AWS infrastructure itself and the Commission's internal systems were not compromised. The breach was described as limited to cloud infrastructure used for hosting Europa.eu websites.
Commission contains cloud incident and begins notifying affected entities
After discovering the March 24 breach, the European Commission said it took immediate containment measures and began notifying potentially affected Union entities. The Commission also continued investigating the scope and impact of the compromise.
European Commission discovers breach of Europa.eu cloud infrastructure
On March 24, 2026, the European Commission discovered a cyberattack affecting cloud infrastructure used to host websites on the Europa.eu platform. The incident impacted at least one AWS account in the Commission's cloud environment, and early findings indicated data theft.
European Commission investigates breach of staff mobile devices
By February 9, 2026, the European Commission was probing a breach involving staff mobile devices. This appears to be public reporting on the January 2026 mobile-device-related incident.
European Commission mobile device environment breached
In January 2026, the European Commission suffered a separate breach affecting its mobile device management environment. Reporting linked the incident to exploitation of Ivanti EPMM and to compromised staff mobile devices.
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Sources
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European Commission Confirms Cloud Data Breach - Infosecurity Magazine
infosecurity-magazine.com
Open sourceHackers steal EU Commission cloud data | Cybernews
cybernews.com
Open sourceEuropean Commission probes breach of staff mobile devices
theregister.com
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