faultline

The testing lab

Fintech challenges

Banking, wallets, payments and trading desks. Money, balances, fees and confirmations with no room for rounding or stale state.

19 challengesPage 1 of 2

Browse by website

Pick the build you want to audit

3 live sites

Showing 1–12 of 19 challenges

Page 1 / 2

Live scenarioMediumMeridian BankFintech

Transfer & Balance Audit - Level 1

Audit Meridian Bank's transfer journey. Verify amounts, balances, duplicate submissions and the confirmation state.

Start audit
25 min timebox5 injected faults500 points availablePreview build
MB

Balance cards, a three-step transfer wizard, payee management, statements and alert preferences. Wired with deterministic data-testid hooks.

Automation-ready
Live scenarioMediumMeridian BankFintech

Payee Integrity & Limits - Level 2

Payees, transfer limits and statement filters. Check that the bank validates the destination before it moves money.

Start audit
20 min timebox5 injected faults500 points availablePreview build
MB

Balance cards, a three-step transfer wizard, payee management, statements and alert preferences. Wired with deterministic data-testid hooks.

Automation-ready
Live scenarioMediumMeridian BankFintech

Statements & Fees Audit - Level 3

Reconcile statements, transfer fees and rounding. The ledger must agree with every displayed total.

Start audit
25 min timebox5 injected faults500 points availablePreview build
MB

Balance cards, a three-step transfer wizard, payee management, statements and alert preferences. Wired with deterministic data-testid hooks.

Automation-ready
Live scenarioHardMeridian BankFintech

Limits & Fees - Level 4

A hard audit of transfer limits, fee handling, negative amounts and failure states under retry pressure.

Start audit
25 min timebox5 injected faults500 points availablePreview build
MB

Balance cards, a three-step transfer wizard, payee management, statements and alert preferences. Wired with deterministic data-testid hooks.

Automation-ready
Live scenarioMediumMeridian BankFintech

Profile & Alerts Audit - Level 5

Profile validation, alert preferences, payees and mobile transfer actions — the account settings that quietly affect payments.

Start audit
20 min timebox5 injected faults500 points availablePreview build
MB

Balance cards, a three-step transfer wizard, payee management, statements and alert preferences. Wired with deterministic data-testid hooks.

Automation-ready
Live scenarioMediumMeridian BankFintech

Alerts, Profile & Statements - Level 6

A settings-heavy audit: alert persistence, profile validation, statement filters, responsive actions and receipt accuracy.

Start audit
20 min timebox5 injected faults500 points availablePreview build
MB

Balance cards, a three-step transfer wizard, payee management, statements and alert preferences. Wired with deterministic data-testid hooks.

Automation-ready
Live scenarioMediumChainVaultFintech

Wallet & Swap Audit - Level 1

Audit ChainVault's portfolio and swap journey. Verify amounts, balances, fees and the confirmation state.

Start audit
25 min timebox5 injected faults500 points availablePreview build
C

Portfolio balances, live swap quotes, network fees, slippage controls, activity history and security settings. Wired with deterministic data-testid hooks.

Automation-ready
Live scenarioHardChainVaultFintech

Swap Integrity & Slippage - Level 2

Quotes, slippage, retries and responsive actions. Verify the swap executes at the terms the customer reviewed.

Start audit
25 min timebox5 injected faults500 points availablePreview build
C

Portfolio balances, live swap quotes, network fees, slippage controls, activity history and security settings. Wired with deterministic data-testid hooks.

Automation-ready
Live scenarioMediumChainVaultFintech

Address Book & Activity - Level 3

Address validation, duplicate sends, activity filters and portfolio reporting across networks.

Start audit
20 min timebox5 injected faults500 points availablePreview build
C

Portfolio balances, live swap quotes, network fees, slippage controls, activity history and security settings. Wired with deterministic data-testid hooks.

Automation-ready
Live scenarioHardChainVaultFintech

Portfolio Reporting - Level 4

A reporting-focused audit: balances, token precision, activity filters, withdrawal limits and mobile review actions.

Start audit
25 min timebox5 injected faults500 points availablePreview build
C

Portfolio balances, live swap quotes, network fees, slippage controls, activity history and security settings. Wired with deterministic data-testid hooks.

Automation-ready
Live scenarioHardChainVaultFintech

Withdrawal Limits - Level 5

Balance checks, negative amounts, limits, duplicate sends and failure handling under retry pressure.

Start audit
30 min timebox5 injected faults500 points availablePreview build
C

Portfolio balances, live swap quotes, network fees, slippage controls, activity history and security settings. Wired with deterministic data-testid hooks.

Automation-ready
Live scenarioMediumChainVaultFintech

Security & Settings - Level 6

Security toggles, address validation, activity filters and mobile confirmations — the settings that protect a wallet.

Start audit
20 min timebox5 injected faults500 points availablePreview build
C

Portfolio balances, live swap quotes, network fees, slippage controls, activity history and security settings. Wired with deterministic data-testid hooks.

Automation-ready