High-value penetration testing for B2B SaaS, fintech, marketplaces and e-commerce.

In-depth SaaS pentest — 25 hours within a 21-business-day window. No Vuln's flagship offer.

Note: A 25-hour package of adversarial research, allocated within a window of up to 21 business days. Rates range from US$ 150 to US$ 250 per hour, depending on stack, testing mode and timeline. For more depth: No Vuln Deep Dive (50h) or No Vuln Full Scope (100h+).

Technical scope

• Full multi-tenant isolation testing (cross-tenant BOLA on every endpoint)
• OAuth 2.0 / OIDC, SAML XSW, JWT algorithm confusion
• Full OWASP API Top 10 (BOLA, BFLA, BOPLA, mass assignment)
• Webhooks (inbound and outbound) — SSRF, replay, signature bypass
• HTTP/2 single-packet race conditions
• Business logic abuse (billing, coupons, payment flows)

The technology behind the Sprint

• Proprietary Auth Matrix — automatically maps roles × endpoints × HTTP verbs
• 500+ proprietary tools and modules for discovery, exploitation and validation
• Proprietary technology integrated with frontier AI models, led and validated by researchers
• 6 quality gates before delivery (devil's advocate, blind spot audit, chain matrix, re-analysis, persistent exploitation, pattern matching)
• 86 attack vectors and 1,017 sub-vectors mapped (vs. the 10 categories of the OWASP Top 10)

Deliverables

• Executive report (3–5 pages) + technical report (30–80 pages)
• Live readout session (1–2h) with your technical team
• Unlimited retests for 60 days after the fix
• Direct communication over an encrypted channel throughout the engagement
• Auditor-ready statement (SOC 2 CC7.1, ISO 27001:2022 A.8.29 and A.8.8, PCI DSS 11.4 — plus BACEN Resolution 4,893 and LGPD Art. 46 for companies operating in Brazil)

Other packages: No Vuln Deep Dive (50h, US$ 7,500 to US$ 12,500, production systems with an active customer base) and No Vuln Full Scope (100h+, from US$ 15,000, full white box + mobile + cloud). For continuous testing, PTaaS works as a recurring bank of hours at a lower hourly rate — pricing on request.

High-value pentesting for SaaS, fintech and e-commerce.

No Vuln's positioning is to deliver the same adversarial depth as a traditional enterprise consultancy at a lower hourly rate. According to 2026 industry pricing guides, US penetration testing firms typically charge US$ 200–350 per hour; No Vuln works at US$ 150 to US$ 250 per hour, in hour packages from US$ 3,750. Same technical arsenal, same mapping of 1,017 attack sub-vectors, same 6 quality gates before delivery — without the corporate overhead (account managers, bureaucratic formats, rigid schedules).

The US market column is an estimate for comparison only: package hours multiplied by the typical hourly range. Actual quotes depend on scope, on both sides.

A cheaper automated scan isn't an equivalent alternative: a scanner doesn't find business logic flaws, cross-tenant BOLA, OAuth account takeover or race conditions. No Vuln is built for small and mid-sized SaaS companies, early-stage fintechs, marketplaces and e-commerce businesses that need real technical depth — not an automated scanner — without a traditional enterprise consultancy budget.

Proprietary Auth Matrix

SaaS pentesting demands combinatorial coverage. An API with 100 endpoints, 5 roles and 5 HTTP verbs has 2,500 combinations to test. Doing it by hand isn't feasible; doing it with a scanner leaves gaps. No Vuln's Auth Matrix automatically maps every role × endpoint × verb combination, determines the expected response and flags anomalies. When the result differs from what's expected — a regular user gets a 200 on an admin endpoint, a viewer manages to PATCH a read-only resource — there's a BFLA, BOLA or BOPLA candidate. Every anomaly goes through human validation before it becomes a finding.

Proprietary technology + frontier AI, led by researchers

No Vuln's proprietary technology is integrated with frontier AI models, and every engagement is led by researchers. At specific stages — such as processing the raw output of the Auth Matrix and the tool arsenal, and prioritizing candidates by likely impact — technology and models work side by side. A researcher validates every finding before it goes into the report: building a reproducible PoC, calibrating severity (CVSS 4.0 + business impact) and describing the exploitation step by step. AI accelerates. People decide.

86 attack vectors and 1,017 sub-vectors mapped

The OWASP Top 10 lists 10 categories. No Vuln's technology maps 86 vectors and 1,017 sub-vectors — including classes that don't appear on public lists: SSRF chains with DNS rebinding, OAuth state confusion + PKCE bypass, BOPLA with mass assignment in nested GraphQL, HTTP/2 single-packet race conditions, SAML XSW (XML Signature Wrapping), cross-tenant cache poisoning, webhook forgery, prototype pollution chains and parser differentials. Each class has its own detection and exploitation playbook.

500+ proprietary tools and modules

Discovery (recon, OSINT, subdomain enumeration, JS intel mining), authentication (OAuth attacker, SAML attacker, JWT attacker, MFA bypass tester), API (GraphQL alias overloading, BOLA wildcard probe, mass assignment tester), server-side (out-of-band SSRF probe, HTTP smuggling CLI, deserialization CLI) and business logic (HTTP/2 race attack, state machine attacker, business logic fuzzer). All integrated with the standard toolkit (Burp Pro, ffuf, sqlmap, Nuclei).

6 quality gates before delivery

1. Devil's advocate — someone on the team tries to disprove every finding
2. Blind spot audit — a review of what may have been overlooked in the scope
3. Chain matrix — mapping chains between findings (compound severity)
4. Re-analysis — a second researcher reviews critical findings
5. Persistent exploitation — a final attempt to chain the findings already discovered
6. Cross-target pattern matching — comparison with patterns observed in other engagements

Cross-tenant BOLA

Customer A can read or edit customer B's data just by swapping an ID in the URL. It's the #1 risk in the OWASP API Top 10 and a recurring cause of data leaks in B2B SaaS. It doesn't show up in a scanner. It shows up when a researcher creates two accounts in different tenants and tests cross-access, endpoint by endpoint.

OAuth account takeover

State confusion, redirect URI fuzzing, code injection, PKCE bypass, scope escalation. In a SaaS with social login or OAuth integrations with third parties, one flaw here means an attacker takes over accounts without ever needing the password.

BOPLA / mass assignment

A PATCH endpoint that accepts fields like isAdmin, tenantId, price, balance or payment_status without an allowlist. The attacker updates a field they shouldn't be able to touch — and becomes an admin, switches tenants or changes a transaction amount.

SSRF via webhooks + cloud metadata

A customer configures a webhook URL. The SaaS fires an HTTP request without validating the address range. The attacker points it at http://169.254.169.254/ and exfiltrates IAM credentials. A pivot into the entire infrastructure.

HTTP/2 single-packet race conditions

The attacker sends 30 requests in the same TCP packet. Endpoints without an atomic lock process them all in parallel: a coupon redeemed N times, a balance overdrawn below zero, MFA bypass through a race on the OTP code, a double withdrawal, a double refund on a Pix payment (Brazil's instant payment system).

JWT algorithm confusion + JKU SSRF

A JWT signed with alg: RS256 is accepted as HS256, using the public key as the HMAC secret. Or the jku parameter points to a server the attacker controls. Result: forging an admin token without the private key.

Business logic abuse

Price manipulation between cart and checkout, bypassing single-use coupons, free-shipping fraud, cashback on cancelled orders, tampering with marketplace payment splits, race conditions on Pix refunds. Bugs specific to your product that no generic tool can detect — only a researcher who maps the business flow by hand.

• Mutual NDA within 24h — you sign ours or we sign yours. Before the first technical call.
• Technical call within 72h — 30–60 minutes to map the attack surface, roles, critical flows and applicable regulations. No account manager: you talk directly to a researcher.
• Formal proposal within 3 business days — detailed scope, timeline, investment range and contract terms.
• Direct communication during the engagement — a dedicated encrypted channel (Slack/Discord/Signal) with the researcher. Critical findings are flagged in real time, not just in the final report.
• Retest included — 60 days on the Sprint; for the other packages, the period set in the proposal; ongoing with PTaaS. You fix it, we validate it, at no extra cost.
• Auditor-ready report — SOC 2 (CC7.1), ISO 27001:2022 (Annex A 8.29 and 8.8) and PCI DSS 4.0 (Requirement 11.4); for companies operating in Brazil, also BACEN Resolution 4,893, BCB Resolution 85 and LGPD Art. 46. Compliance statement issued after the retest.
• International billing in USD — via Wise or international wire transfer: 50% at kickoff, 50% on delivery. Proposal, contract and NDA in your language; the report in the language of whoever requests it. Brazilian company registration (CNPJ) 48.992.864/0001-63.

No Vuln is a good fit if you are

• An early- or growth-stage B2B SaaS company looking for real technical depth and strong value for money
• An early-stage fintech or payment institution that needs audit-ready pentest evidence without an enterprise consultancy budget — including for BACEN Resolution 4,893 if you operate in Brazil
• A marketplace or e-commerce business in production that needs coverage of payment splits, anti-fraud controls, cross-seller BOLA and inventory race conditions
• A healthtech or digital clinic handling sensitive health data, HL7/FHIR or telemedicine (in Brazil: LGPD Art. 11 and CFM Resolution 2,314)
• A SaaS company preparing for SOC 2 or ISO 27001 that needs an auditor-ready report
• A company that values direct communication with the researcher, with no account manager between you and the person who finds the bug
• A technical team that prefers a sprint-aligned PTaaS model over a once-a-year pentest

When another company may be a better fit

• Large-scale digital bank / critical infrastructure → Brazilian firms such as Tempest, Cipher and IntrusionCyber
• Long-running red team / OT-SCADA → IntrusionCyber, Tempest
• SOX or ISO audit integrated with a financial audit → the Big Four (Deloitte, EY, KPMG, PwC)
• Multinational SaaS with a global footprint → Synack, Cobalt, NetSPI (international PTaaS)
• Cloud security + third-party risk management → Tenchi Security

For a side-by-side comparison of No Vuln and the leading Brazilian pentest companies, see Pentest companies in Brazil and our comparison of 10 pentest companies in Brazil in 2026.