Cyberthieves hit European Space Agency, stealing hundreds of gigabytes of data

image via Space.com

January 15, 2026, 8:03 PM

• •ESA is investigating cyberattacks that led to the leak of sensitive data, including proprietary software, authorization credentials, and project documentation.
• •Cybersecurity researchers note that space agencies are common targets, with data breaches potentially stemming from poor cyber hygiene and vulnerabilities in software or third-party services.
• •The breaches resulted in the exposure of operational procedures, spacecraft details, and contractor data, with the potential for strategic information to be revealed.
• •The incidents have prompted criminal investigations and raised concerns about the ongoing cyber risks faced by space agencies.

The European Space Agency (ESA) is dealing with a series of cyberattacks that have resulted in the leakage of sensitive data onto the dark web, including proprietary software and project documentation. The agency has launched a criminal investigation in response to the breaches, which involved the theft of hundreds of gigabytes of data. Experts warn that these attacks are not isolated incidents, and that vulnerabilities may exist within ESA's networks, software providers, or other third parties. These incidents highlight the increasing cyber threats faced by space agencies, with potential long-term risks arising from the combination of stolen data and unpatched security holes.

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