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image of a ground station dish on the ground facing up towards the milky way galaxy

Ground Station Cybersecurity: Why Your Satellite's Biggest Risk Is on the Ground

When it comes to satellite security, it’s a lot easier to attack when your target is on the ground rather than in orbit. Ground station cybersecurity, the practice of protecting the antennas, control centers, and software that command satellites and receive their data, is where many incidents begin. A

2 small satellites in low earth orbit connecting secure data packets and communications between them.

What Is a Signing Key? Key Generation in Low Earth Orbit

What Is a Signing Key? Before you trust any secure system, you need to trust one secret: its signing key. If an attacker copies that key, they can impersonate the system it belongs to, and without other mechanisms in place, nobody downstream can tell. For any company evaluating where to

image of a computing chip aboard a satellite, with a small cylindrical satellite in the background.

4 Hardware Components Behind SpaceComputer's Satellite Architecture

By 2027, several orbital compute platforms will be live. Most will depend on their single compute chip vendor never being compromised. Once a satellite is in orbit, that dependency is permanent. The hardware choices made before launch determine whether the system can be trusted, as there is no way to

Image of data moving from land to orbit on satellites, and locked by the security of Orbitport

Making Orbitport Verifiable: Reproducible Builds, Docker Hardened Images, and Attested TLS

Introduction In our previous post, Orbitport: The Gateway to Space, we introduced Orbitport as SpaceComputer’s universal gateway between Earth and in-space infrastructure: a developer-friendly API layer that abstracts away ground-station scheduling, intermittent orbital connectivity, satellite-specific integrations, and the operational complexity of communicating with hardware in

image of different compute chips connected with glowing network lines to connect them displaying connection of different secure elements

Space Fabric: What you need to know

We are building the standard hardware and software architecture for computing and the space internet in orbit. Every secure computing chip protecting financial transactions, cloud workloads, and government data today has the same vulnerability: it can be physically accessed on Earth. Given enough time and physical access, an attacker can

image of a ground station connecting to satellites in orbit above earth with glowing data lines.

Why Use Proof of Execution Triangulation for Space Compute

When you send a photo to a cloud AI service, you trust that it's processed in a specific data center in a specific country. AWS US-East-1 is a classic example. But how do you verify your compute workload ran in a specific data center? And for

image of a satellite with solar panels in sun synchronous orbit (SSO) on Earth's horizon.

Why Orbital TEEs Are Critical for Secure AI in Space

Introduction To many people on Earth, AI feels like it is taking up all the compute on Earth. Data centers run at high temperatures, causing strain on power grids, and new builds wait in permit queues for years, or are cancelled heavily — a challenge compounded by the vast quantity of

SpaceComputer processor chip with silicon-like patterns for compute around the chip representing the hardware capabilities of TEEs.

What are Trusted Execution Environments & Comparing the Top 5 TEEs.

Introduction to Trusted Execution Environments Trusted Execution Environments (TEEs) are one of the most widely deployed security primitives in modern computing, and also one of the least understood outside security circles. They are the reason you can run sensitive code on a cloud provider you do not own, pass cryptographic

Image displaying light data cables touching on a compute silicon chip or PCB board, showing secure data transfers.

The Post-Quantum Cryptographic Expiration Date on Every Satellite You're Launching

There are approximately 14,000 satellites in orbit right now. US Congress just introduced the Satellite Cybersecurity Act. Fewer than 5% of enterprises around the world have a post-quantum transition plan, and Google recently moved its internal post-quantum deadline forward to 2029. Every organization needs a post-quantum

Filip Rezabek (left) and Toufic Batrice (right) with space and satellites in the background orbiting above Earth. Ethereum Community Conference in Cannes, France.

Space Infrastructure for Safe Computation: Talk by Filip and Toufic at EthCC

Last week, CoFounder Filip Rezabek and Applied cryptographer Toufic Batrice from the SpaceComputer team attended the Ethereum Community Conference (EthCC) in Cannes, France. They gave a talk 'Stars to Bits: Space Infrastructure for Safe Computation' which focused on the opportunity, challenges, and applications of building in Low Earth

4 small Satellites offering security services orbiting above Earth with network connecting lines and code and architecture maps traced translucently on the sky

Satellite Security Services in Low Earth Orbit

SpaceComputer delivers satellite security services from low Earth orbit: confidential compute, key management, and verifiable randomness, all accessible through a single API on Orbitport.

Title image for the blog showing a 'gateway' and futuristic docking station floating above earth, connected to satellites

Orbitport: The Gateway to Space

Hello Earthlings! Space computing today feels like a strange split reality: on one hand, we are building a future filled with paradoxes—laser communications beaming data across orbit, moon based hotels, and ambitious timelines for human travel to Mars. On the other hand, much of our actual interaction with space

title image displaying a satellite next to a lunar eclipse.

Cooling for Orbital Compute: A Landscape Analysis

Key Takeaways 1. Thermal management is the defining engineering bottleneck for orbital compute at every scale. 2. Space is cold, but it does not cool things, and the physics of heat rejection in vacuum are fundamentally different from anything used in terrestrial data centers. 3. At megawatt scale, radiator mass

Title graphic image, showing cosmic radiation from the surface of the sun, to match the cosmic randomness service (cTRNG) that SpaceComputer offers.

Randomness as Infrastructure

Randomness is the invisible foundation of digital security. Every security key ever created, and every encrypted message ever sent depends on a random number that nobody could have predicted. In February 2025, North Korean hackers executed the largest cryptocurrency theft in history, stealing $1.5 billion in ETH from Bybit.