Application
Application security
Authentication, access control, input handling and API exposure across your application layer.
Services
Where teams building with AI secure what they ship
Focused reviews across your application, cloud, source control, and release pipeline.
What we review
Review coverage across your stack
Source control
Repos & CI/CD
Branch protection, leaked secrets, GitHub and GitLab Actions, dependency and supply-chain risk.
Infrastructure
Cloud & config
Vercel, Supabase and cloud configuration. Environment exposure and risky defaults before they ship.
Release
Production readiness
Practical, prioritised findings before you ship and before customers ask.
How engagements work
How the review works
01
Scope the stack
You tell us what you're shipping. We agree the surfaces in scope. No vague open-ended retainers.
02
Review the system
Hands-on review across code, infrastructure, auth and release pipeline, grounded in how attackers actually operate.
03
Report the risks
A prioritised, severity-rated findings report with reproduction steps where they help and clear remediation guidance.
04
Support remediation
A follow-up to walk the team through fixes. For continuous cover afterwards, Sebastion reviews every pull request.
What you get
A report your team can use
Clear risk, useful proof and a follow-up path to help fixes land.
Prioritised findings reportSeverity ratingsReproduction steps where usefulRemediation guidance
Tell us your stack
Which stack are you shipping?
Pick the technologies and focus areas that describe your system. We'll scope a focused review from what you send.
Security work in the open
Public findings inform the private review
The same research discipline, applied to your stack.
Merged fixes
Public CVEs
Case studies
Find the issues before they ship
Tell us your stack and we'll scope a focused security review.