The European Space Agency (ESA) has confirmed that a series of cyberattacks has led to the leak of sensitive data — including staff email credentials — on dark web forums, prompting concerns across the international space community.
The incidents, which began in mid-December 2025 with breaches of external servers, have exposed hundreds of gigabytes of data. Hackers claim to be selling the information on underground internet marketplaces, raising questions about the robustness of ESA's cyber defences amid increasing digital threats.
