Cyber Incident Victim: European Space Agency
Date:
Dec 2015
Location:
France
Summary
Anonymous compromised subdomains of the European Space Agency, exfiltrating and publicly leaking sensitive data including full names, email addresses, office details, institutional affiliations, phone numbers, and clear-text passwords belonging to thousands of subscribers and officials. The breach exposed three distinct datasets containing registration records, credentials of 52 users, and subscriber information for over 8,000 individuals. Attackers attributed the intrusion to recreational motives, aligning with their prior operations against entities like the United Nations Climate Conference and World Trade Organization. The incident highlighted security deficiencies in user data protection, creating risks for large-scale phishing and identity theft exploitation of the compromised information.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 1 motive | 1 technique |
| Threat Actor | Type | Location |
|---|---|---|
| 1 actor | Available to members | Available to members |
Description
On December 14, 2015, the hacktivist group Anonymous breached subdomains of the European Space Agency (ESA), specifically targeting due.esrin.esa.int and exploratio.esa.int. The attackers exfiltrated and publicly leaked three distinct datasets containing sensitive information from ESA systems. The first file comprised the site’s database, while the second contained full names, email addresses, office addresses, institution affiliations, phone numbers, and fax numbers of hundreds of registered users, including 52 individuals whose clear-text passwords were exposed. The third file included names, email addresses, and clear-text passwords of over 8,000 subscribers. Anonymous disseminated the data through publicly accessible links labeled as "Database," "Officials’ data," and "Subscribers’ data." The group claimed responsibility in a communication with HackRead, stating the intrusion was conducted "for the Lulz" as a form of entertainment ahead of the Christmas season. Forensic analysis confirmed the authenticity of the leaked information, noting it had not previously appeared in public breaches.
The incident exposed systemic security weaknesses in ESA’s data protection practices, particularly the storage of passwords in unencrypted plaintext. Attackers linked this operation to prior breaches targeting the United Nations Climate Conference (COP21) and the World Trade Organization, demonstrating a pattern of high-profile intrusions. While Anonymous framed the attack as recreational, the compromised data created significant risks for affected individuals, including potential phishing campaigns, identity theft, and credential-stuffing attacks by malicious actors. The breach highlighted operational vulnerabilities within ESA’s digital infrastructure, though the agency’s specific containment or remediation actions were not detailed in available reports. Security analysts emphasized the broader implications of storing sensitive user credentials without encryption, underscoring the incident’s role in illustrating persistent threats to institutional cybersecurity frameworks.