Financial-grade Zero-Trust enforcement — for the .NET stack regulated institutions actually run.
Regulated financial institutions run on the Microsoft and Azure stack, move money at the method level, and answer to examiners for every action. B5 Secure is purpose-built for that reality: in-process enforcement, FIPS 140-3 cryptography, post-quantum readiness, and a compliance posture that stays inside your boundary.
In a bank, authorization is where money moves — and where examiners look.
For a financial institution, the consequential authorization decision is not who logged in; it is whether this caller — human, service, or agent — may perform this action on this account, right now, and whether that can be proven afterward. Horizontal control planes decide at the edge and leave the method that posts to the ledger guarded by hand-written code. B5 puts the enforcement and the audit record at that method, inside the institution’s own cloud.
Built for the regulated Microsoft/Azure enterprise.
Idiomatic .NET, financial-grade cryptography, and a library model that collapses the procurement friction unique to regulated buyers.
In-process enforcement at the ledger
Authorization is bound to the method that moves money, with the audit record captured at the execution point — the highest-fidelity place for an examiner.
FIPS 140-3 Level 3 cryptography
Signing keys live in a single-tenant Azure Managed HSM validated to FIPS 140-3 Level 3, with key attestation proving provenance inside the hardware boundary.
Post-quantum ready
Crypto-agile primitives (ML-KEM / ML-DSA) so the migration to post-quantum signing is a configuration change, not a rebuild.
Nothing leaves your boundary
No SaaS dependency, no authorization data replicated to a vendor store — B5 inherits the institution’s certified compliance perimeter.
Agentic, governed
Agent-initiated transactions carry On-Behalf-Of scope enforced at the method, with both agent and human logged for SOX-style attribution.
Suspension on KYC / fraud / OFAC
Suspend a user, or a single operation on a single entity, in response to KYC, fraud, or OFAC signals, with revocation taking effect at the next call.
Across the regulated financial landscape.
Asset-grade controls
The Never Trust pipeline behind $15B+ in assets protected and secure, enforcing read-only by default and write only with scope.
Ceilinged, attributable transfers
Agent- and user-initiated payments capped at the call site, every action attributable to a human.
Data-element authorization
Authorize not just the action but the specific account and field it touches, down to sensitive data.
B5 complements your institution’s existing stack.
The in-app enforcement layer alongside your IdP and controls.
B5 does not replace Entra, your fraud platform, or your detection stack — it is the in-process enforcement layer those systems assume your application provides. For a .NET-heavy regulated institution, B5 is the lightest-weight path to provable, per-action enforcement without standing up a new gateway or onboarding a new data-processing vendor. It runs inside the boundary your regulators already examine.
Financial-grade enforcement, inside your boundary.
Bring your regulated .NET architecture to a B5 architect — we’ll map enforcement to the methods that move money, and the Trust Center your reviewers will thank you for.