A fintech handling regulated data

We re-architected a permissive internal platform into a zero-trust system — every request authenticated, authorized, and audited, with least-privilege access by default.

Zero-Trust SecurityArchitectureDevSecOpsSOC 2Zero-Trust Security
security.firstsoft.dev
Access policydefault: deny
svc:billing✓ allow · least-priv
user:anon✕ denied
svc:reports✓ allow · least-priv
CI scan · secrets · IaC0 criticals

The problem

A single stolen credential could reach far more than it should — broad implicit trust, thin audit trails, and access rules nobody could fully explain or prove to an auditor.

Our approach

  1. 01

    We replaced implicit trust with explicit policy: every request proves its identity and is granted only the access it needs.

  2. 02

    We scoped each service to least privilege and made every access decision auditable, so who-can-do-what is always answerable.

  3. 03

    We wired security scanning and policy checks into CI, so regressions are caught before they ship, not after.

The outcome

A platform where one compromised credential no longer opens the whole system — a tighter blast radius, clean audit trails, and access the team can actually reason about.

Impact (figures pending confirmation)

Access blast radius
−92% [confirm]
Critical findings at audit
0 [confirm]
Mean time to revoke access
−85% [confirm]

Build something like this

One senior team, end to end. Tell us what you're building and we'll architect the path to ship it.