The Invisible Threat: Business Logic Flaws in Modern Applications and Why Scanners Miss Them

This whitepaper explains how business logic flaws—subtle application and design mistakes—often evade automated scanners and AI, using real-world examples (First American document exposure, USPS API disclosure, Tesla parameter tampering) and Active Directory NTLM relay attack chains to demonstrate risks; it argues that human-led penetration testing, threat modeling, and experienced testers (OSWE/OSEP) are essential complements to automation for uncovering these high-impact, context-dependent issues.