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Arqit NetworkSecure is a commercial quantum security tool by Arqit. ISG Federal is a commercial quantum security tool by Merlin Cyber. Compare features, ratings, integrations, and community reviews side by side to find the best quantum security fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Enterprise and mid-market security teams with hybrid networks facing quantum threats should deploy Arqit NetworkSecure to protect VPN tunnels against store-now-decrypt-later attacks before cryptographically relevant quantum computers arrive. The tool's split-trust key orchestration means Arqit itself cannot access your encryption keys, and compliance with NIST ML-KEM and NSA Commercial Solutions for Classified standards signals serious cryptographic rigor. Skip this if your network runs primarily on a single vendor's ecosystem or you need the tool to enforce zero-trust access control; NetworkSecure is narrowly focused on quantum-safe VPN hardening, not identity or microsegmentation.
Federal security teams managing cryptographic sprawl across legacy and modern systems need ISG Federal because it discovers and maps crypto dependencies without requiring deep domain expertise from your staff. The tool maps directly to NIST CSF 2.0's Asset Management and Continuous Monitoring functions, and its integration with Venafi and HashiCorp means you're not ripping out existing key management to deploy it. Skip this if you're a smaller agency without significant cryptographic inventory; the value compounds only when you have hundreds of certificates and keys scattered across disconnected systems.
Quantum-safe VPN hardening via on-demand encrypted key orchestration.
Post-quantum crypto discovery, agility & mgmt for US gov agencies.
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Common questions about comparing Arqit NetworkSecure vs ISG Federal for your quantum security needs.
Arqit NetworkSecure: Quantum-safe VPN hardening via on-demand encrypted key orchestration. built by Arqit. headquartered in United Kingdom. Core capabilities include Quantum-safe encryption key generation and orchestration for IPsec VPN tunnels, Protection against Store Now, Decrypt Later (SNDL) quantum attacks, Multi-layer OSI support: TLS, Layer 3 IPsec, Layer 2 MACsec, and Layer 1 OTNsec..
ISG Federal: Post-quantum crypto discovery, agility & mgmt for US gov agencies. built by Merlin Cyber. headquartered in United States. Core capabilities include Automated cryptographic asset discovery across the enterprise, Cryptographic library identification without deep domain expertise, Visualization of cryptographic dependencies and vulnerabilities..
Both serve the Quantum Security market but differ in approach, feature depth, and target audience.
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