Finowl for SaaS
Secure SaaS workspaces from leaked credentials at signup and login
A single compromised SaaS login can expose a whole customer workspace: documents, billing settings, integrations and API tokens. Password-based accounts that sit alongside SSO are a frequent weak spot, and workspace admins are especially valuable targets. Finowl helps product and security engineers add breached password checks to signup and password changes, and email breach context to login risk and admin actions, with two small endpoints that slot into an existing auth service.
Product teams also look for better ways to understand the people using their software. The Finowl gender API estimates how a first name or email local part is typically used, which can support aggregate user research and inclusive design reviews. It is not a substitute for asking users, and it should never influence plan limits, access controls or anything an admin or end user would reasonably expect to decide for themselves.
WHAT TEAMS RUN INTO
Challenges in saas
Workspace-wide blast radius
One takeover in a multi-user workspace can expose shared files, customer data and connected integrations, so a breach affecting one user becomes an incident for an entire customer account.
Password fallback beside SSO
Many products still allow email and password logins for smaller customers or break-glass access, and those passwords are often reused from other tools and services.
Trial and freemium abuse
Free trials attract automated signups. Teams want lightweight signals at registration without adding CAPTCHAs and forms that slow down genuine evaluators from trying the product.
Thin user research data
Self-serve SaaS often collects only a work email and a name, making it hard to check whether research panels and onboarding studies reflect the real user base.
HOW FINOWL HELPS
Three APIs, one integration

Email breach checks for SaaS logins and admins
For a SaaS product, the riskiest moments are not only logins. They include granting admin rights, creating API tokens, changing billing owners and disabling SSO enforcement. Checking the acting user’s email against known breaches gives your authorization layer one more piece of context, and the breach list shows whether passwords were part of what leaked.

Breached password checks for SaaS signup and resets
SaaS products that offer email and password login alongside SSO need a strong baseline for the password path. Checking new passwords against breach data is one of the simplest controls with real impact, and NIST SP 800-63B recommends it. The Finowl password breach API returns a breached flag and count in a single POST request from your auth service.

Gender estimates for SaaS user research and analytics
Self-serve SaaS signups usually provide a work email and sometimes a full name. The Finowl gender API can estimate how the name, or the name inside an email local part, is typically used. Research and design teams can use those estimates in aggregate to see whether usability study panels and onboarding interviews resemble the broader user base.
A FEW GOOD QUESTIONS
SaaS questions
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