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Welcome to the April edition of Space Security Sentinel!

This month, we are bringing you space cybersecurity perspectives from around the world. 🌎 Estonia is on the front lines of Europe’s space cyber defense. We spoke with Estonian experts about how the small nation is making a major investment into a new Space Cyber Testing and Training Ground to counter threats from Russia. 🇪🇪 Also, see the on-the-ground cyber takeaways from Space Symposium in Colorado, and the International Space Show.

We just extended the Call for Technical Presentations for CyberSat 2025 to April 21. We’re looking for hands-on how-to sessions and real-world case studies that deliver actionable solutions to critical security challenges. Got expertise to share? Submit your idea and help shape the future of space cybersecurity.

If you find this valuable, share it with colleagues who care about securing space. Got feedback or story ideas? I’d love to hear from you.
📩 mholmes@accessintel.com
— Mark Holmes, Program Chair, CyberSat

Estonia: The Beating Heart of Europe’s Space Cyber Response

Estonia, a country with a population of around 1.4 million people, is on the front line of Europe’s space cyber battle and one of the most advanced nations when it comes to developing cyber capabilities to keep space assets secure.

It has already been a huge year for the space industry in Estonia. In January, this year, a consortium led by Estonian space company, Spaceit signed a multimillion-euro, multiyear contract with ESA to develop an innovative Space Cyber Testing and Training Ground. This initiative will enable companies in the space sector to test their technology, conduct training, and enhance their cyber defense capabilities.…[continued]

Cyber Takeaways from Space Symposium: Cyber is an ‘All Hands’ Effort
COLORADO SPRINGS, Colo.— Cybersecurity in space architectures is going to be an all-hands effort requiring reworking flaws in legacy network systems and developing new platforms…[continued]

Sponsored

SPARTA: A Tactics, Techniques, and Procedures Framework for the Space-Cyber Professional

The space enterprise must employ robust security principles, standards and defense-in-depth techniques to ensure resiliency against cyber intrusions. The Aerospace Corporation develops and tests innovative space-cyber solutions, including the Space Attack Research and Tactic Analysis (SPARTA) framework. Aerospace created SPARTA (available free to the public) to provide unclassified information about how spacecraft may be uniquely compromised and how to overcome those threats.

Learn More

UK Space Show Underlines the Importance of Space and Cyber for Defense
FARNBOROUGH, UK — A greater reliance on space heightens the importance of space cybersecurity. One of the top officials in the U.K. military outlined the…[continued]

Marlink Creates New Cybersecurity Company, Marlink Cyber
Marlink is creating its own cybersecurity company in a strategic move. Marlink Cyber will be a dedicated cybersecurity company to address growth of cyber threats…[continued]

Space ISAC Partners with NASA SCaN on Space Security Information Sharing Initiative
Space Information Sharing and Analysis Center (Space ISAC) entered into a partnership with the NASA Space Communication and Navigation (SCaN) program on Thursday to facilitate…[continued]

Honeywell Aerospace Partners with Nokia, Numana to Develop Quantum Encryption for Space-to-Terrestrial Networks
Honeywell Aerospace Technologies will develop new quantum-secure encryption keys for space-to-terrestrial networks under the terms of a new strategic partnership with Nokia and Numana. “Honeywell…[continued]

SES Partners With SpecQtral on Quantum Communications
SES has made an interesting move when it comes to quantum-secure communications. It has teamed up with Singapore-based SpeQtral to develop an interoperable optical ground…[continued]

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