Make network functions unreachable without rebuilding the network.
Close the inbound paths that network functions, management plane, and OSS/BSS don't need, while engineers, vendors, and tenants keep their access. Deploy as an overlay, one function or tenant at a time.
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Every new service widens the surface you are paid to protect.
For decades the core sat behind the PSTN, closed protocols, and a perimeter outsiders couldn't see. As legacy PSTN and copper networks retire and everything moves to IP, network functions, the management plane, and OSS/BSS now share an addressable fabric with every customer, vendor, and managed-service client, and regulators treat that fabric as critical national infrastructure. Every migrated function, vendor session, and tenant is a way in.
The management plane is the most reachable thing in an infrastructure. Privileged access to network functions and OSS/BSS still runs over VPNs and jump boxes with standing credentials. That is the privileged access and segregation territory the Telecommunications Security Act Code of Practice and NIS2 examine most closely.
Your breach is now every customer’s breach. Managed security and connectivity services connect you to thousands of client environments. A compromise upstream can cascade into all of them, and customers now want proof it can't.
The typical arrangement is a jump server or PC stored locally, and all that's doing is moving the attack surface to some remote building.
Access for the people who run the network and no path for attackers.
Network functions that aren't discoverable.
Terniion closes the inbound ports that exist only to admit remote access to network functions, the management plane, and OSS/BSS. Traffic moves through outbound-only, process-bound tunnels instead. Vendor network functions are reached through the overlay, never modified.
No inbound path to pivot through.
Process-level microsegmentation gives every tenant and managed-service client its own isolated, outbound-only path, so a compromised laptop or tenant has no network route into the next.
Privileged access without a standing VPN.
Engineers, OEMs, and integrators reach only the process they're authorized for, only while a session is open, with no standing credentials or jump box. Terniion works with your existing privileged access and audit tooling, not in place of it.
No-exposure secure connectivity you can sell.
Customers self-provision sealed, post-quantum tunnels through your own portal and APIs as a managed service, the same model a European cloud provider already runs in its SOC. You run fewer firewall rules on less hardware.
The network keeps running while security moves in
Terniion overlays the backbone you already run, one network function or customer at a time. Its software runs on hosts you control, and nothing is installed on vendor network functions.
No re-architecture of your SDN, MPLS, or segmentation design
No firmware change on vendor network functions or field equipment
Post-quantum encryption on any IP path, with no dedicated fiber
Fewer firewall rules, less hardware, and less rule management
Built to support the frameworks that guide carriers and network operators
Regulators, boards, and insurers now ask how reachable your network functions and management plane are. Terniion gives you an answer you can show an auditor, backed by closed ports and cryptographic controls.
NIST SP 800-207 and CSF 2.0. Closed inbound ports, process-level isolation, credential-less access.
CNSA 2.0 and NCSC post-quantum guidance. Post-quantum encryption against harvest-now, decrypt-later attacks on traffic that stays sensitive for decades.
Telecommunications Security Act (UK). Supports Code of Practice measures on privileged access, management-plane segregation, and third-party access, as an overlay rather than a rebuild.
NIS2. Third-party access goes through scoped, auditable tunnels.
Every operator is adding connections faster than it can defend them: all-IP migration, vendor access, managed services, AI-driven operations. Detect-and-respond cannot keep up at that scale. The operators who come through the next decade well will be the ones who stopped adding doors and started removing them.
Start with one migration function
We'll show you which paths Terniion closes and how your engineers, vendors, and customers keep working.