Sirius Computer, Inc.
Crux — post-quantum zero-trust networking for defence and critical infrastructure.
Latest event found: 6 Oct 2026 · 11 days ago
Vitality Radar
Pillar Analysis
Strategic Assessment
Strategic Vector
Sirius Computer, Inc. presents itself as a small, specialized cybersecurity venture focused on post-quantum-safe zero-trust networking for defense, intelligence, and critical infrastructure. Public evidence supports a technically differentiated positioning, but provides limited evidence of commercial scale, organizational growth, or operational maturity.
Efficiency Ratio
The company appears to be pursuing a high-specialization, low-headcount model, with potentially strong technical output relative to its reported one-to-ten employees but little verifiable evidence of customer, revenue, or deployment scale.
Evidence Signals
Sirius publicly positioned Crux as a lightweight, post-quantum-safe zero-trust network-access platform with secure provisioning, continuous authentication, and built-in symmetric-key rotation.
Background · older than 12 months
CDW completed its acquisition of Sirius Computer Solutions for approximately $2.5 billion in cash, transferring ownership from Clayton, Dubilier & Rice to CDW.
- About
- Sirius Computer, Inc. develops Crux, post-quantum zero-trust networking for defence and critical infrastructure. Encrypted traffic captured today can be stored and decrypted once a capable quantum computer exists, so anything whose confidentiality must outlast the next decade needs post-quantum protection now.
- Relevancy
- Post-quantum zero-trust networking product 'Crux' for defence and critical infrastructure; defence named as a target domain. Anchor A2. Classified C04-03 — the mirror of Qunnect (C13-14): Sirius builds classical cryptography resistant to quantum attack, Qunnect builds the quantum network. Country NOT asserted — the 'Inc.' suffix is the only signal.
- Tags
- #PostQuantum #ZeroTrust #Crux #NetworkSecurity #HarvestNowDecryptLater #CriticalInfrastructure