A real developer battle-tests your app from every angle — clicking through every customer flow the way your users (and attackers) will. We surface the logic flaws a scanner can't see and you'd never think to check: the ones every app, vibe-coded or not, quietly ships with. Then we ship the fix as a pull request you approve.
An automated scan catches exposed keys, missing headers, world-readable databases. It can't click through your signup, stack a coupon, replay a webhook, or jump between two users' orders. A real developer does — testing your app the way your users and attackers actually will, and finding the logic flaws every app, vibe-coded or not, quietly ships with.
Free or $19. No signup. Read-only. Catches the technical misconfigurations that AI tools ship by default.
From $300, fixed scope. Real engineers running real flows. Fix shipped as a pull request you approve.
// what a human catches
Each of these requires multiple test accounts, real payment flows, knowledge of your intended access model, or code review. A URL-only scanner can flag candidates — only a human can confirm and fix them.
OWASP API6:2023 · A04:2025
Every SaaS needs this and almost none have it dialed in. We sign up multiple times with new emails and the same payment method, attempt plus-addressing (foo+1@gmail.com), gmail dot-stripping, fresh devices, and VPN'd IPs — and document exactly what your dedup catches.
A founder we know watched their friend stack six free trials on a $39/mo SaaS by changing the email and reusing the same card. The fix was a 30-minute change to dedupe on Stripe's card.fingerprint. Most teams never check that field.
OWASP API1:2023 · CWE-639
OWASP WSTG mandates ≥ 2 authenticated accounts to reliably test for insecure direct object references. We log in as User A, change /orders/123 to /orders/124, and document whether User B's data leaks back.
OWASP A04:2025 · API6:2023
Race conditions on concurrent state changes, multi-step workflows that accept POSTs skipping earlier steps, coupon stacking, negative-quantity carts. Code that does the happy path correctly but breaks under adversarial use.
OWASP API8:2023 · CWE-345
Stripe / PayPal webhooks must verify HMAC signatures and reject replays. We attempt forged webhooks against your endpoint and audit the verification path. Missing signature checks have leaked > $200K in our case-study research.
OWASP A05:2025 · CWE-79
Payloads that only fire after persisted data is rendered by a second user. We submit canary content as User A and audit how the app renders it for User B in admin views, exports, notifications, and emails.
OWASP API3:2023
Whether role A should see field X but not Y on the same resource. Requires understanding your intended access model — a scanner can't guess what each field is supposed to permit.
OWASP LLM06:2025
For apps with agentic tool-calling — Cursor or Devin-built backends, Claude Code agents — what tools the agent can invoke, with what permissions, and whether the autonomy boundary is appropriate. This is review work, not endpoint probing.
GDPR · PCI · HIPAA
Whether your data handling meets the laws you're subject to. Cookie consent, data residency, retention policies, DPAs with sub-processors, BAAs if you touch health data. Legal posture, not technical — needs a human eye.
No outsourcing. No project-manager middle layer. The same engineer who scopes the audit reviews and signs the PR.
Founder & lead engineer
Production engineer fluent in the vibe-coding stack — React, Node, PostgreSQL, Supabase, Vercel — and the AI builders (Claude Code, Cursor, Lovable, Bolt). Runs every scoping call. Reviews every PR before it ships.
Security review · placeholder
Second pair of eyes on every audit. Background in application security and secure code review. (Profile coming soon — replace headshot via Studio when added.)
// how the audit runs
We walk through your app together, agree on the audit scope, and write down a fixed-price quote. No retainer, no surprises.
Add us as read-only collaborators on your repo + provide two test accounts. NDA on request. Access revocable any time.
We run every applicable check from the list above. You get a prioritized report with severity, evidence, and a proposed fix for each finding.
We open one PR per finding for you to review and merge. Demo / re-test included.
Read-only access by default. We open pull requests; you merge them. We never push directly.
Agreed up front in the scoping call. No hourly billing surprises.
A real engineer runs your audit and you talk to them directly — no project manager, no offshore team, no ghosting.
We'll scope your audit in 30 minutes and quote a fixed price. If your app doesn't need an audit, we'll tell you that too.