SaaS Penetration Testing Built for Startups and Scale-ups
SaaS penetration testing checks the risks that matter most to software companies: one customer seeing another customer's data, weak SSO and role controls, exposed APIs and misconfigured cloud. Scantra Security helps startups pass enterprise security questionnaires, SOC 2 and ISO 27001 audits with a manual pentest, a clear report and a free retest.
Last reviewed 2026-09-28 by the Scantra Security testing team
Why SaaS companies need a pentest
For most B2B startups the first pentest is triggered by a sales deal. An enterprise prospect sends a security questionnaire asking for your latest third-party penetration test report, and the deal waits until you have one. A good report does more than unblock that deal: it shows your team where the real risks are before your customer base grows.
What we focus on in SaaS applications
- Tenant isolation and insecure direct object references
- Role-based access control and privilege escalation
- SSO, SAML, OAuth and SCIM integrations
- Public and internal APIs, webhooks and integrations
- File uploads, exports and reporting features
- Billing and subscription logic
- Cloud configuration of the hosting account
Security testing for startups on a budget
Startups rarely need to test everything at once. We help you scope a focused engagement around your core product and the questions customers actually ask, then expand coverage as you grow. A grey box test with accounts for each role gives the best value for most early-stage teams.
How it works
1. Scoping call
We review your architecture, roles and customer requirements.
2. Testing
Manual testing of the app, APIs and optionally your cloud account.
3. Report and free retest
CVSS-rated findings with evidence and fixes, then a free retest and updated report once your team has remediated.
4. Attestation letter
A letter you can share with prospects without exposing detailed findings.
How this helps with SOC 2 and ISO 27001
Auditors expect evidence of independent security testing. Our reports map findings to SOC 2 Common Criteria and ISO 27001 Annex A controls and include retest evidence.
Frequently asked questions
How often should a SaaS company pentest?
At least annually and after major feature releases or architecture changes.
Can we share the report with customers?
We provide an attestation letter for sharing, and a full report for your team and auditors.
Do you test multi-tenant isolation?
Yes. Cross-tenant access is one of our primary test areas for SaaS.
Is continuous testing available?
Yes, through our PTaaS model for teams that ship frequently.