The European Space Agency (ESA) has confirmed a major cybersecurity incident in the external servers used for scientific cooperation. The hackers who carried out the operation claim responsibility for the breach in a post in the hacking community site BreachForums and claim that over 200 GB worth of data has been stolen, including source code, API tokens, and credentials. This incident highlights escalating cyber threats to space infrastructure amid growing interconnectedness in the sector
It is alleged that the incident occurred around December 18, 2025, with an actor using the pseudonym “888” allegedly gaining access to ESA’s JIRA and Bitbucket systems for an approximate week’s duration. ESA claims that the compromised systems represented a “very small number” of systems not on their main network, which only included unclassified data meant for engineering partnerships. As a result, the agency conducted an investigation, secured the compromised systems, and notified stakeholders, while claiming that no mission critical systems were compromised.
The leaked data includes CI/CD pipelines, Terraform files, SQL files, configurations, and hardcoded credentials, which have sparked supply chain security concerns. As for the leaked dat
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