LIVE THREAT FEED
SENTINEL detected anomalous telemetry on GEO-4 asset, contained & isolated  |  New TTPs attributed to APT-COSMO added to threat intelligence database  |  GPS spoofing campaign active over Eastern Europe, 3 operators alerted  |  OrbitShield firmware v4.2.1: critical patch pushed to 214 spacecraft  |  AstroSOC monitoring elevated activity on PolarNet-7 uplink  |  ZeroG Trust policy enforcement enabled across Constellation-X (320 nodes)  |  SENTINEL detected anomalous telemetry on GEO-4 asset, contained & isolated  |  New TTPs attributed to APT-COSMO added to threat intelligence database  | 
Protecting Critical Space Infrastructure

Every Orbit
Needs a Shield
in the Stars

Cepheus Space is the only cybersecurity platform engineered from the ground up for the unique constraints of orbital systems, delivering real-time threat detection, quantum-safe encryption, and zero-trust security across satellites, ground stations, and deep-space links.

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// SENTINEL MONITOR v4.2.1 LIVE
UPTIME: 99.99% THREATS TODAY: 0 COVERAGE: LEO/MEO/GEO/HEO
ASSET ID ORBIT STATUS LAST CHK
SAT-047LEO 420km● SECURE0.3s
SAT-123GEO 35,786km● SECURE1.1s
SAT-208MEO 2,000km▲ MONITOR2.4s
GS-EU-01GROUND● SECURE0.1s
SAT-195HEO 1,000km● SECURE0.9s
SAT-033LEO 551km● SECURE1.8s
GS-AP-02GROUND● SECURE0.4s
SAT-317LEO 480km✕ INCIDENT0.2s
7/8 ASSETS CLEAR 1 ACTIVE INCIDENT NEXT SWEEP 1.8s
Our Mission

Space is the New Battleground

Nation-state actors, criminal syndicates, and hacktivists have turned orbital infrastructure into a prime target. GPS spoofing, uplink jamming, firmware implants, and command injection attacks against satellites are no longer hypothetical. They happen daily.

Cepheus Space was founded by veterans of NSA, CISA, and leading aerospace programs to close the security gap that has left the world's most critical infrastructure, the orbital layer, dangerously exposed.

Space-Native Security

Built for bandwidth-constrained, high-latency, radiation-hardened environments where you can't push a patch mid-orbit

Continuous Threat Intelligence

The only dedicated space domain threat intelligence feed, tracking 1,400+ adversary TTPs targeting orbital assets

Post-Quantum Cryptography

NIST PQC-standard algorithms hardening every uplink, downlink, and inter-satellite link against quantum-era adversaries

Products & Services

The Complete Space Security Platform

End-to-end protection from the spacecraft bus to the ground station and everything in between.

Flagship Product

OrbitShield

Our flagship satellite endpoint security platform. Deployed directly on the spacecraft bus, OrbitShield monitors firmware integrity, detects command injection, and enforces cryptographic authentication on every telecommand, with a footprint under 512 KB.

  • Threat Detection< 12 ms
  • Memory Footprint512 KB
  • Supported BusesCAN, SpaceWire, MIL-STD-1553
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GroundGuard

Hardened security for ground stations and teleport facilities. Protects uplink infrastructure, antenna control units, and mission data processors from intrusion, supply-chain attacks, and insider threats.

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LinkCrypt

Post-quantum encrypted uplink and downlink protection. Implements CRYSTALS-Kyber and CRYSTALS-Dilithium to secure telemetry, tracking & command (TT&C) channels against harvest-now-decrypt-later attacks.

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AstroSOC

A 24/7 Space Security Operations Center staffed by analysts who understand orbital mechanics, RF environments, and space-domain adversary tradecraft, not just generic IT threats.

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ZeroG Trust

Zero-trust network architecture purpose-built for satellite constellations. Enforces micro-segmentation, cryptographic identity, and least-privilege access across every inter-satellite link and ground-to-space channel.

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Custom Security Assessment

Not sure where your exposure is? Our red team specialises in space-domain penetration testing and threat modelling for satellite operators.

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Technology

Engineered for the Harshest Environment

Space security demands more than repurposed IT tools. Our core technologies are built for radiation, latency, bandwidth constraints, and adversaries operating across the electromagnetic spectrum.

Post-Quantum Cryptography Engine

LinkCrypt implements NIST-standardised lattice-based algorithms: CRYSTALS-Kyber for key encapsulation and CRYSTALS-Dilithium for digital signatures, replacing legacy RSA and ECC that quantum computers will break within a decade. Our onboard crypto module runs on radiation-tolerant FPGAs with under 2 ms key exchange latency.

Key Exchange Latency
< 2 ms
Algorithm
CRYSTALS-Kyber-1024
Entropy Source
Quantum RNG (QRNG)

ZeroG Trust: Space Zero-Trust Architecture

Every spacecraft, ground station, operator terminal, and data relay is treated as an untrusted node by default. Cryptographic identity (hardware root of trust via TPM) is verified on every interaction. Micro-segmentation prevents a compromised ground station from issuing valid commands without explicit policy authorisation.

Policy Enforcement
Every Packet
Identity Root
Hardware TPM 2.0
Lateral Movement Block
Full Isolation

SENTINEL: Autonomous Threat Detection AI

SENTINEL is a radiation-hardened ML inference engine that runs directly onboard the spacecraft. It ingests telemetry, power-bus fluctuations, command logs, and RF signal characteristics to detect anomalies in real-time, including novel zero-day firmware exploits, without requiring a ground uplink to trigger a response.

Detection Latency
< 12 ms
False Positive Rate
< 0.003%
Inference Engine
Rad-hard FPGA

AstroSOC: 24/7 Space Security Operations

Our dedicated Space SOC runs around the clock from hardened facilities in three continents. Analysts monitor telemetry anomalies, RF interference signatures, uplink authentication failures, and threat intelligence feeds simultaneously. When SENTINEL fires an alert, a human expert is reviewing it within 90 seconds.

Alert Response SLA
90 seconds
Monitored Orbits
LEO / MEO / GEO / HEO
Threat Intel Sources
Space-ISAC + Proprietary
Case Studies

Defending the Orbital Layer

Real incidents. Real responses. Zero breaches on protected assets.

Active Response
ASSETS200 SAT
THREATAPT-COSMO
STATUSCONTAINED
Nation-State APT Ongoing since Jan 2026

Operation Ironsky

A sustained nation-state campaign targeting a 200-satellite LEO broadband constellation using a combination of uplink spoofing, command injection via a compromised ground station, and supply-chain implants in COTS components. OrbitShield and AstroSOC detected the initial intrusion within 8 minutes, 3 days before the operator's own team was aware.

Threat Containment
82%
Resolved
TYPEZero-Day
RES TIME6 hrs
GPS Spoofing 2025

Navigation Zero-Day Response

A GPS navigation satellite operator detected anomalous signal-integrity failures. Our red team traced a zero-day exploit in the baseband processor, patched via cryptographically signed uplink within 6 hours, before any navigation data was corrupted.

In Progress
NODES320 SAT
ETAQ3 2026
Zero-Trust Rollout Target: Q3 2026

Constellation-Wide ZeroG Trust

Deploying ZeroG Trust across a commercial Earth-observation operator's 320-satellite constellation and 14 globally distributed ground stations, replacing legacy PKI with hardware-rooted identity and enforcing microsegmentation across every node.

Resolved
IMPLANT11 months
SITESAll uplinks
Ground Station Breach 2024

Lunar Gateway Ground Hardening

Following an attempted intrusion at a primary cislunar communications ground station, GroundGuard was deployed across all uplink facilities. Post-deployment forensic analysis revealed a dormant implant had been present for 11 months undetected.

Get in Touch

Secure Your Orbital Assets Today

Whether you operate a single satellite or a 500-bird constellation, if it's in orbit, it's a target. Let's talk about where your exposure is and how to close it.

Free threat exposure assessment within 48 hours
Dedicated satellite security engineering team
ITAR-compliant, classified programme cleared
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