MVP threat modeling for SaaS startups — one-page template showing assets, entry points, abuse paths, impact, and controls

MVP Threat Modeling for SaaS Startups: A 60-Minute, One-Page Method

Most SaaS startups don’t fail their first security review because the framework was too hard. They fail because nobody owned login abuse until a customer flagged it. They fail because admin role changes were trusted on the client side. They fail because webhooks weren’t signed and a third party became an attacker. These are not exotic problems. They are basic ones, and they almost always trace back to the same root cause: there was no moment in the build process where someone asked, “how could this be misused?” ...

May 5, 2026 · 16 min · GRC Vitrix