European Space Agency — Cyber Attacks, Breaches & Threat Activity

Threat entity extracted from intelligence sources

Frequency
20
occurrences
First Seen
December 30, 2025
Last Seen
June 14, 2026

Related Threat Clusters

  • Hack-A-Sat Contest Highlights Vulnerabilities in Space-Based Cybersecurity

    In August 2026, the U.S. military will host the Hack-A-Sat 4 contest at DEFCON, where teams of white-hat hackers will attempt to breach a satellite in orbit. This event follows the 2022 cyberattack on Viasat's KA-SAT…

    2 articles · Updated June 16, 2026
  • ESA Confirms Data Breach with Potential Data Leak

    The European Space Agency (ESA) has confirmed a data breach, with a threat actor claiming to have leaked approximately 200 gigabytes of data. An internal investigation is ongoing to determine the extent of the breach…

    3 articles · Updated December 30, 2025
  • European Space Agency Reports Cyber Attack on External Servers

    The European Space Agency has disclosed a cyber security incident affecting several of its external servers that support unclassified operations. The attack has raised concerns about the potential exposure of sensitive…

    4 articles · Updated January 6, 2026
  • ESA Confirms Cybersecurity Breach of External Servers

    The European Space Agency (ESA) has confirmed a cybersecurity breach affecting a limited number of external servers. The breach involves a threat actor offering 200 GB of allegedly stolen data for sale on a dark web…

    20 articles · Updated December 30, 2025
  • ESA Confirms Data Breach; Hackers Auction Stolen Information

    The European Space Agency (ESA) has confirmed a data breach involving servers located outside its corporate network. Hackers are reportedly auctioning stolen information, prompting ESA to initiate a forensic security…

    7 articles · Updated January 15, 2026
  • ESA Confirms Breach of External Servers Containing Unclassified Data

    The European Space Agency (ESA) has confirmed a breach involving servers outside its corporate network. The compromised servers contained unclassified information related to collaborative engineering activities. ESA is…

    7 articles · Updated December 30, 2025

Recent Intelligence Reports

  • ⁠Five Teams of Hackers will Compete to Breach US Satellite in Space.⁠ — www.newsweek.com · June 14, 2026
  • Cyberthieves hit European Space Agency, stealing hundreds of gigabytes of data — Space · January 16, 2026
  • European Space Agency Confirms Data Breach After Hackers Auction Stolen Information — Cpomagazine · January 15, 2026
  • European Space Agency initiates criminal probe into breach — Theregister · January 7, 2026
  • ESA calls cops as crims lift off 500 GB of files, say security black hole still open — Theregister · January 7, 2026
  • European Space Agency discloses major cyber attack on external servers — Teiss · January 6, 2026
  • European Space Agency hit again as crims claim 200 GB haul — Theregister · December 31, 2025
  • European Space Agency hit again as cybercrims claim 200 GB data up for sale — Theregister · December 31, 2025

CVSS v3.1 Breakdown