# Business Logic

- [Logic Data Validation](/penetration-testing/web/business-logic/logic-data-validation.md)
- [Ability to Forge Requests](/penetration-testing/web/business-logic/ability-to-forge-requests.md)
- [Integrity Checks](/penetration-testing/web/business-logic/integrity-checks.md)
- [Process Timing](/penetration-testing/web/business-logic/process-timing.md)
- [Race Conditions](/penetration-testing/web/business-logic/race-conditions.md)
- [Circumvention of Work Flows](/penetration-testing/web/business-logic/circumvention-of-work-flows.md)
- [Defenses Against Application Misuse](/penetration-testing/web/business-logic/defenses-against-application-misuse.md)
- [Upload of Unexpected File Types](/penetration-testing/web/business-logic/upload-of-unexpected-file-types.md)
- [Upload of Malicious Files](/penetration-testing/web/business-logic/upload-of-malicious-files.md)
- [Payment Functionality](/penetration-testing/web/business-logic/payment-functionality.md)
