Security

Reentrancy protection implemented

merchant-escrow/src/lib.rs:line 112

Integer overflow checks in place

All amounts use i128 with validation

Access control on admin functions

seller-verification/src/lib.rs:verify_kyc

Event emissions for all state changes

All contracts emit events on mutation

Contract initialization protection

initialize() can only be called once

Token transfer validation

Amount checked before USDC transfer

Escrow expiry auto-refund mechanism

auto_refund() in merchant-escrow

148 unit tests passing

All 5 contracts — cargo test

No private keys stored in browser

Only publicKey stored in WalletContext

All API calls use HTTPS only

Horizon URL uses https://

Environment variables not exposed

All secrets in .env.local and Vercel

XSS protection via React

React escapes all rendered values

Wallet connection permission scoped

Freighter only gets publicKey access

No hardcoded credentials in code

GitHub repo has zero hardcoded secrets

GitHub secrets properly configured

VERCEL_TOKEN, ORG_ID, PROJECT_ID set

Contract IDs in environment variables

All IDs in Vercel env vars

CI/CD pipeline secured

Only main branch triggers deploy

Vercel deployment protected

Auto-deploy only from GitHub Actions

Dependencies regularly updated

Using latest Next.js 14 and SDKs

AI fraud detection on buyer wallets

fraud-detection contract scans wallets

Escrow protects both parties

Funds locked until delivery confirmed

Dispute resolution mechanism

dispute-resolution contract handles cases

Auto-refund on deal expiry

auto_refund() releases after expiry

Seller trust badge system

seller-verification contract tracks history

Transaction amount validation

Min 0.01 USDC, max 10000 USDC per deal