August 12, 2025
Scaling Threat Modeling for a Global SaaS Platform
Secure fintech apps, ensure compliance, and counter evolving threats with we45’s expert-led solutions.
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Secure fintech apps, ensure compliance, and counter evolving threats with we45’s expert-led solutions.
A global CxM Product company with a 15-year-old codebase and only a 3-year-old security program was under pressure. They were rolling out new features and integrating external services at high velocity, but every addition introduced new risk. Their internal security team was small, overworked, and facing an architecture riddled with technical debt. What they needed was bandwidth, expertise, and consistency in how threat modeling got done.
Security reviews were slow and inconsistent. Complex reviews could take up to 3 weeks, involving deep architectural discovery, undocumented systems, and multiple rounds of stakeholder interviews. Even simple feature additions required 3–5 days of focused effort.
With limited staff, they were constantly behind, and risks were slipping through. Threat modeling was still a manual process that relied on a few overbooked experts. Documentation was often missing or outdated. And because security couldn’t keep up, threat modeling happened late or not at all.
Security couldn’t keep up, threat modeling happened late or not at all.
We45's Threat Modeling as a Service gave the team a structured and reliable way to tackle the backlog. By embedding an experienced security architect into the customer’s engineering ecosystem, we45 took ownership of the threat modeling backlog. Reviews were handled with a structured and repeatable approach, balancing technical depth with business context.
TMaaS plugged into existing tools and workflows, JIRA tickets, Confluence pages, Slack threads, and even voice notes from whiteboard sessions. Our architect worked like part of the internal team, engaging with developers, asking the right questions, and delivering threat models that moved the needle.
For complex reviews, the TMaaS expert led architecture discovery, synthesized system understanding, and delivered prioritized findings with mitigation paths. For smaller feature reviews, the same expertise was applied in rapid cycles to keep engineering unblocked.
The we45 consultant broke the work into two tracks:
We45’s security architect navigated ambiguity, filled in gaps through direct team interaction, and ensured that nothing critical was missed.
The client didn’t need more dashboards or another tool. Instead, they needed someone who could speak engineering, understand legacy systems, and deliver real security insight quickly. We45's TMaaS gave them that: senior judgment on demand, plugged directly into their product cycles.
With TMaaS, threat modeling became part of the delivery rhythm. Finally done at the right time, with the right inputs, by someone who understood the system.
we45's training program in Application Security Essentials helped a major public university system develop secure applications for medical research.The app started with just one research project and a handful of users in the beginning. Today, it host
