Guides and insights on penetration testing, casino security, crypto and smart contracts.
Gateways, acquiring, card data and OTP — what a payment audit covers and why banks need it.
RNG, odds, withdrawals and panels — what the auditor checks and how to get ready.
Reentrancy, flash loans, oracle manipulation and withdrawal races — and how to close them.
The vulnerabilities we hunt, how the audit works, and what the report contains.
How a banking SQLi reaches customer accounts, why scanners miss it, and how to close it.
How a crash-game server seed leaks before the round and breaks fairness.
How two parallel withdrawals drain one balance — and how to close the race.
How a demo login reaches production and becomes the fastest path to compromise.
How a predictable object id gives away another user's account, and how to test it.
How one-time codes get bypassed — reuse, rate limits, races and fallbacks.
How a contract drains a pool, the fix that prevents it, and what an audit covers.
How a permissive CORS policy lets any site read a user's financial data.