Business Pro Phase 296

Webhook Callback Security Gate

A webhook callback security gate may later review provider reference formats, signature rules, replay windows, idempotency keys, duplicate handling, and callback evidence packets, but it must not become payment truth, ledger truth, settlement truth, or live webhook runtime.

Callback

evidence-only

Replay

blocked

Payment truth

not claimed

Phase rule

Callback security accepts evidence, not payment truth

Phase 296 designs the Webhook Callback Security Gate only. It records whether a future callback-security route clearly separates provider callback evidence, signature verification evidence, timestamp window evidence, nonce evidence, replay-protection evidence, idempotency evidence, provider reference evidence, duplicate callback evidence, missing callback evidence, delayed callback evidence, reversal callback evidence, failed callback evidence, settlement callback evidence, sandbox callback evidence, production callback evidence, credential custody dependency, licensed partner dependency, payment-ops dependency, wallet-ops dependency, bank-ops dependency, reconciliation dependency, ledger dependency, exception-desk dependency, security dependency, compliance dependency, and audit dependency. It does not receive live callbacks, trust callbacks, verify real signatures, store webhook secrets, expose payload secrets, mark payment success, mark payout success, mark refund success, mark wallet top-up success, mark settlement final, mutate orders, post ledger, close reconciliation, release funds, retry provider calls, call partner APIs, or claim Webhook Callback runtime readiness. No real contact, CRM task, account creation, onboarding approval, listing activation, order, payment, wallet, commission, ledger, export, or partner sync is created in this phase.

Review outcome

Callback security route appears

Record callback wording, signature boundary, replay boundary, and blocked actions.

No webhook endpoint.

Review outcome

Callback payload appears

Verify payload is redacted, provider references are masked, and no webhook secrets or raw private values are exposed.

No raw payload trust.

Review outcome

Signature appears verified

Route signature, timestamp, nonce, and algorithm wording to future backend verification design.

No real verification.

Review outcome

Duplicate or delayed callback appears

Route duplicate, missing, delayed, reversed, failed, and retried callbacks to reconciliation and exception desks.

No auto resolution.

Review outcome

Payment success appears

Route success, paid, settled, completed, reversed, failed, and pending states through partner statement and ledger controls.

No payment finality.

Review outcome

Sandbox/production switch appears

Route environment boundaries to production config approval and credential custody.

No production endpoint.

Callback proof

What Webhook Callback Security must capture

Evidence chain

The callback security packet must reference Phase 295 Provider Credential Custodian boundary, Phase 294 Licensed Partner Operations boundary, Phase 293 Wallet Operations boundary, Phase 292 Bank Operations boundary, Phase 289 Ledger Controller boundary, Phase 288 Reconciliation Officer boundary, Phase 287 Settlement Officer boundary, Phase 286 Payment Operations boundary, Phase 285 Finance Officer boundary, Phase 283 Compliance Officer boundary, Phase 282 Auditor boundary, and Phase 264 role-routing evidence.

Callback classes

The route must distinguish payment callback, payout callback, refund callback, wallet top-up callback, withdrawal callback, settlement callback, reversal callback, chargeback callback, failure callback, timeout callback, retry callback, and sandbox test callback.

Signature boundary

Signature algorithm, signature header, timestamp header, nonce header, provider reference, idempotency key, callback secret alias, certificate fingerprint, and request hash may be described as metadata only, never exposed as secret values.

Replay boundary

Timestamp windows, nonce uniqueness, request hash matching, duplicate callback detection, replay attempt count, and retry policy must stay design evidence until a backend runtime is approved.

Truth boundary

A callback alone cannot mark order paid, payout paid, refund paid, wallet topped up, withdrawal completed, settlement released, ledger posted, reconciliation closed, or customer balance updated.

Environment boundary

Sandbox callback URL, staging callback URL, production callback URL, test provider payloads, mock callbacks, and live callbacks must remain separated and clearly labeled.

Mismatch boundary

Missing, duplicate, delayed, reversed, partial, failed, unknown, malformed, unsigned, expired, and mismatched callbacks must route to exception desk and reconciliation review.

Privacy boundary

Callback payloads must hide CNIC, phone, bank details, wallet identifiers, provider account identifiers, tokens, signatures, internal IDs, private notes, and hidden fraud/risk labels by default.

Callback controls

How callback security avoids fake payment truth

1Webhook Callback Security Gate must not create a webhook endpoint, receive live callbacks, trust callbacks, verify real signatures, store webhook secrets, expose raw payloads, mark payment success, mark payout success, mark refund success, mark wallet top-up success, mark settlement final, mutate orders, post ledger, close reconciliation, release funds, retry provider calls, call partner APIs, or activate Business Pro controls.

2Callback route must not treat a callback row, provider reference, HTTP 200, JSON payload, screenshot, terminal output, email, WhatsApp message, partner statement, bank line, wallet label, or Excel record as financial truth by itself.

3Callback success labels must remain evidence-only until matched against order intent, execution draft, adapter queue, partner callback, partner statement, reconciliation result, exception desk status, maker-checker approval, and ledger policy.

4Callback payload samples must not include real CNIC, real phone, real account number, real wallet ID, real signature, real token, real webhook secret, real provider credential, real partner secret, real customer address, or real bank data.

5Every callback design must require idempotency, retry rules, timeout handling, duplicate prevention, replay prevention, signature verification, timestamp window enforcement, nonce checking, rate limiting, audit logging, and safe failure handling before runtime approval.

6Safe callback routing does not prove partner integration, live webhook runtime, signature verification runtime, payment runtime, wallet runtime, bank runtime, settlement runtime, reconciliation runtime, ledger runtime, report runtime, export runtime, or public upload readiness.

Decision matrix

Callback state to next safe movement

Callback security copy is safe

Move to Production Config Approval Gate

No runtime endpoint

Raw payload visible

Security/privacy block

No payload exposure

Secret or signature visible

Credential custody block

No secret display

Payment marked successful

Payment-ops/reconciliation review

No payment finality

Duplicate callback appears

Idempotency and exception desk review

No duplicate posting

Delayed callback appears

Reconciliation aging review

No auto resolution

Reversal callback appears

Exception desk and ledger policy review

No automatic reversal

Production URL appears

Production config approval review

No production activation

Callback packet

Future webhook callback boundary evidence fields

webhookCallbackSecurityEvidenceIdproviderCredentialCustodianBoundaryEvidenceIdlicensedPartnerOperationsBoundaryEvidenceIdwalletOperationsOfficerBoundaryEvidenceIdbankOperationsOfficerBoundaryEvidenceIdpaymentOperationsBoundaryEvidenceIdledgerControllerBoundaryEvidenceIdreconciliationOfficerBoundaryEvidenceIdsettlementOfficerBoundaryEvidenceIdfinanceOfficerBoundaryEvidenceIdcomplianceOfficerBoundaryEvidenceIdauditorBoundaryEvidenceIdcallbackPayloadEvidenceIdcallbackSignatureRuleEvidenceIdcallbackTimestampWindowEvidenceIdcallbackNonceEvidenceIdcallbackReplayProtectionEvidenceIdcallbackIdempotencyEvidenceIdproviderReferenceEvidenceIdrequestHashEvidenceIdsandboxCallbackEvidenceIdproductionCallbackEvidenceIdduplicateCallbackEvidenceIdmissingCallbackEvidenceIddelayedCallbackEvidenceIdfailedCallbackEvidenceIdreversalCallbackEvidenceIdchargebackCallbackEvidenceIdmalformedCallbackEvidenceIdunsignedCallbackEvidenceIdexpiredCallbackEvidenceIdexceptionDeskDependencyEvidenceIdproductionConfigDependencyEvidenceIdpackageIdcandidateVersionbuildNumberdeviceMatrixIddeviceClassosVersionnetworkTypecallbackSecurityEntryStatecallbackCategorycallbackEnvironmentcallbackRuntimeClaimStatewebhookEndpointClaimStatesignatureVerificationClaimStatetimestampWindowClaimStatenonceVerificationClaimStatereplayProtectionClaimStateidempotencyClaimStateduplicatePreventionClaimStateproviderReferenceClaimStatepaymentSuccessClaimStatepayoutSuccessClaimStaterefundSuccessClaimStatewalletTopUpSuccessClaimStatewithdrawalSuccessClaimStatesettlementFinalityClaimStateledgerMutationClaimStatereconciliationClosureClaimStatefundReleaseClaimStatepartnerApiCallClaimStateretryProviderCallClaimStateproductionUrlClaimStaterawPayloadVisibilityStatewebhookSecretVisibilityStatesignatureVisibilityStatetokenVisibilityStatecustomerPrivateDataVisibilityStatebankPrivateDataVisibilityStatewalletPrivateDataVisibilityStateproviderPrivateDataVisibilityStatecredentialCustodyDependencyStatelicensedPartnerDependencyStatepaymentOpsDependencyStatewalletOpsDependencyStatebankOpsDependencyStatereconciliationDependencyStateledgerDependencyStateexceptionDeskDependencyStatesecurityDependencyStatecomplianceDependencyStateredactionStatemaskingStatedataMinimizationStateevidenceDeletionClaimStateescalationPathStaterevocationPathStatebusinessRouteLeakageStateadminRouteLeakageStatedemoDataLabelStateunsafeClaimStatescreenshotEvidenceIdcheckerDecision

Blocked automation

What this phase must not create

1Auto create webhook endpoint, receive live callbacks, trust callbacks, verify real signatures, store webhook secrets, expose raw payloads, mark payment success, mark payout success, mark refund success, mark wallet top-up success, mark withdrawal success, mark settlement final, mutate orders, post ledger, close reconciliation, release funds, retry provider calls, call partner APIs, or Business Pro operations controls

2Auto create callback security account, callback assignment, callback runtime, webhook runtime, provider callback runtime, signature verification runtime, timestamp verification runtime, nonce verification runtime, replay protection runtime, idempotency runtime, duplicate prevention runtime, provider reference finality, payment success, payout success, refund success, wallet top-up success, withdrawal success, settlement finality, ledger entry, reconciliation closure, settlement release, report export, or callback security session

3Auto fetch, view, export, copy, mutate, submit, approve, reject, publish, contact, collect, pay, refund, settle, notify, message, call, geolocate, verify, assign, inspect, penalize, freeze, revoke, delete, rotate, override, file, certify, close, waive, sign, publish, execute, or sync any callback-private, webhook-private, signature-private, credential-private, provider-private, partner-private, bank-private, wallet-private, payment-private, ledger-private, reconciliation-private, settlement-private, finance-private, legal-private, compliance-private, auditor-private, regulator-private, founder-private, admin-private, customer-private, shop-private, vendor-private, rider-private, supplier-private, manufacturer-private, order-private, evidence-private, support-private, or helper-private record

4Auto open webhook console, callback console, provider console, partner dashboard, API key console, credential vault, certificate store, secret manager, sandbox console, production config, env file, CI secret store, log dashboard, analytics payload, settlement release desk, payout desk, refund desk, ledger dashboard, reconciliation dashboard, exception desk, report export desk, evidence deletion desk, audit correction desk, regulator dashboard, compliance dashboard, legal console, security console, admin dashboard, founder dashboard, partner dashboard, customer dashboard, shopkeeper dashboard, supplier dashboard, manufacturer dashboard, support desk, crisis desk, or operations dashboard

5Auto enable webhook runtime, callback runtime, signature verification runtime, timestamp verification runtime, nonce runtime, replay protection runtime, idempotency runtime, duplicate prevention runtime, provider API runtime, payment runtime, wallet runtime, bank runtime, settlement runtime, ledger posting, reconciliation closure, settlement release, raw private data disclosure, report submission, export download, evidence deletion, secret access, feature flag change, callback sign-off, or Business Pro subscription

6Auto claim Webhook Callback Security route visibility means callbacks work, signatures work, idempotency works, replay protection works, partner callbacks are trusted, payments work, payouts work, refunds work, wallet works, bank works, settlement works, ledger works, reconciliation works, legal works, compliance works, audit works, privacy works, security works, or launch is ready

7Auto store personal phone, personal email, CNIC, selfie, precise location, family data, private notes, callback payload secrets, provider credentials, API keys, client secrets, private keys, signing keys, certificates, webhook secrets, callback signatures, bearer tokens, refresh tokens, cookies, OTP, session IDs, device IDs, production endpoints, bank details, wallet details, hidden scores, audit secrets, production secrets, legal waivers, partner bank details, or billing details

8Auto erase callback-leakage, raw-payload-leakage, webhook-secret-leak, callback-signature-leak, token-leak, replay-claim, idempotency-claim, duplicate-prevention-claim, callback-auto-approval, payment-success-claim, payout-success-claim, refund-success-claim, wallet-topup-claim, settlement-finality-claim, ledger-mutation-claim, reconciliation-closure-claim, fund-release-claim, provider-api-call-claim, production-url-claim, report-export-claim, raw-data-claim, evidence-deletion-claim, callback-signoff-claim, business-route-leakage, admin-route-leakage, fake-demo-data, or private-data evidence after a later pass

Acceptance

Done means wired and safe

1Phase 295 links forward to Phase 296.

2Phase 296 defines webhook callback security gate without runtime mutation.

3Phase 296 is wired into OS launcher, founder navigation, public scope lock, route cleanup, and main chain control room.

4Mobile render has no horizontal overflow.

5No /home backlinks are introduced.

6Runtime contact, account, onboarding, listing, order, payment, wallet, commission, export, and partner sync stay blocked.

Back to Phase 295 Main chain room Open Phase 297