Professional Business Logic Testing Services

Applications Tested

Had Logic Flaws

Security Report Delivery

Logic Flaws Found

Applications have logic flaws

Missed by automated scanners

E-commerce apps vulnerable to price manipulation

Average logic flaw breach cost

💰 Price Manipulation Testing

Price manipulation testing examines e-commerce business logic testing validating payment flow security testing against price manipulation. We test price manipulation testing identifying parameter tampering enabling negative values, calculation errors in pricing logic, quantity manipulation affecting total price, rounding errors in currency conversion, integer overflow in price calculations, and boundary conditions testing. Our business logic vulnerability testing identifies price manipulation through checkout process vulnerability testing examining state manipulation during payment, transaction logic testing validation, discount code logic testing combined with price manipulation, order manipulation changing prices post-validation, and business rule testing gaps enabling attackers to purchase items for arbitrary prices, achieve negative pricing through calculation errors, exploit rounding errors, manipulate quantity affecting price, and bypass price validation through workflow bypasses requiring proper validation logic and business constraints enforcement.

Testing Focus: Parameter tampering, negative values, calculation errors, quantity manipulation, rounding errors, boundary conditions.

🎟️ Discount & Coupon Abuse Testing

Discount abuse testing examines discount code logic testing validating coupon abuse and promo code abuse prevention. We test discount code logic testing identifying multiple coupon stacking, expired coupon reuse, discount manipulation through parameter tampering, coupon duplication, promo code abuse through brute forcing, referral program security testing weaknesses, loyalty point manipulation, and reward system vulnerability testing. Our application logic testing identifies discount abuse through transaction logic testing examining state manipulation during discount application, race conditions enabling multiple discount usage, quantity manipulation amplifying discounts, workflow bypasses skipping discount validation, and business logic flaw testing gaps enabling attackers to stack unlimited coupons, reuse expired codes, manipulate discount percentages, duplicate promotional codes, and achieve free purchases through discount abuse requiring proper business rule testing and authorization logic implementation.

Testing Focus: Coupon stacking, expired codes, discount manipulation, promo code abuse, loyalty points, referral fraud.

📦 Inventory Logic Testing

Inventory logic testing examines inventory manipulation through race conditions and concurrent requests. We test inventory logic testing validating quantity manipulation prevention, race condition testing for overselling, TOCTOU vulnerabilities in stock checking, concurrent requests exploiting inventory, and asynchronous processing issues. Our business logic penetration testing identifies inventory manipulation through business process testing examining time-of-check time-of-use testing gaps between stock verification and purchase, race conditions through concurrent requests purchasing limited stock, order manipulation through quantity manipulation, state manipulation in cart, and transaction logic testing failures enabling attackers to purchase out-of-stock items through race conditions, exploit TOCTOU vulnerabilities bypassing stock limits, manipulate quantities beyond inventory, and achieve inventory depletion through concurrent requests requiring proper multi-step process testing and transaction integrity validation.

Testing Focus: Race conditions, TOCTOU, concurrent requests, quantity manipulation, overselling, stock bypass.

🔄 Workflow Bypass Testing

Workflow bypass testing examines process bypasses circumventing business constraints through workflow bypasses. We test workflow bypass testing identifying multi-step process testing failures, workflow steps skipping, state manipulation bypassing validation, process flow testing gaps, and process manipulation. Our workflow security testing identifies workflow bypasses through application workflow testing examining forced browsing to later workflow steps, state manipulation skipping required steps, parameter tampering bypassing validation, transaction logic testing gaps, business rule testing failures, and authorization logic weaknesses enabling attackers to skip payment steps, bypass approval workflows, manipulate application state, access restricted workflow steps, and circumvent business constraints through workflow bypasses requiring proper process flow testing, validation logic at each workflow step, and complete business process testing ensuring workflow steps integrity.

Testing Focus: Step skipping, forced browsing, state manipulation, validation bypass, workflow integrity, process flow.

⏱️ Race Condition Testing

Race condition testing examines TOCTOU vulnerabilities and concurrent requests exploitation. We test race condition testing validating time-of-check time-of-use testing gaps, concurrent requests handling, asynchronous processing security, and transaction logic testing. Our business logic vulnerability assessment identifies race conditions through logic flaw assessment examining TOCTOU vulnerabilities between authorization check and action execution, concurrent requests exploiting shared resources, transaction replay through race conditions, order manipulation via concurrent requests, inventory manipulation through race conditions, and state manipulation during concurrent processing enabling attackers to bypass authorization through TOCTOU vulnerabilities, exploit inventory limits through concurrent requests, achieve privilege escalation through race conditions, and manipulate transactions through asynchronous processing requiring proper transaction isolation, atomic operations, and comprehensive race condition testing validation.

Testing Focus: TOCTOU, concurrent requests, asynchronous processing, transaction isolation, atomic operations.

💳 Payment Flow Security Testing

Payment flow security testing examines checkout process vulnerability testing and transaction logic testing. We test payment flow security testing validating subscription logic testing, transaction replay prevention, payment bypass resistance, and business rule testing. Our e-commerce business logic testing identifies payment flow vulnerabilities through checkout process vulnerability testing examining state manipulation during payment, workflow bypasses skipping payment, parameter tampering modifying amounts, transaction logic testing gaps, race conditions in payment processing, and calculation errors in payment logic enabling attackers to bypass payment entirely through workflow bypasses, manipulate payment amounts through parameter tampering, replay successful transactions, exploit subscription logic for free access, and achieve payment bypass through state manipulation requiring proper payment flow security testing, transaction integrity validation, and comprehensive checkout process vulnerability testing ensuring business constraints enforcement.

Testing Focus: Payment bypass, transaction replay, subscription abuse, amount manipulation, checkout integrity.

👤 User Registration Logic Testing

User registration logic testing examines account creation logic testing and password reset logic testing. We test user registration logic testing validating duplicate account prevention, referral program security testing, reward system vulnerability testing, and validation logic. Our application logic testing identifies registration vulnerabilities through account creation logic testing examining email verification bypass, duplicate email handling, referral fraud through fake accounts, loyalty point manipulation at registration, password reset logic testing weaknesses, account enumeration through registration, and business rule testing failures enabling attackers to create unlimited accounts for referral fraud, bypass email verification, manipulate registration rewards, exploit referral programs, abuse password reset, and achieve account takeover through registration logic flaws requiring proper user registration logic testing, account creation logic testing validation, and password reset logic testing security.

Testing Focus: Account creation, email verification, referral fraud, password reset, duplicate prevention, rewards abuse.

🔐 Privilege Escalation Logic Testing

Privilege escalation logic testing examines authorization logic gaps enabling unauthorized access. We test privilege escalation logic testing validating authorization logic implementation, business rule testing for role enforcement, and access control logic. Our business logic security assessment identifies privilege escalation through logic flaw assessment examining parameter tampering to elevate privileges, role manipulation through state manipulation, workflow bypasses accessing admin functions, race conditions in authorization checks, TOCTOU vulnerabilities between permission check and action, and authorization logic weaknesses enabling attackers to escalate from regular user to admin through parameter tampering, bypass authorization checks through workflow bypasses, exploit race conditions in privilege verification, and achieve unauthorized access through authorization logic gaps requiring proper privilege escalation logic testing, authorization logic validation, and comprehensive business rule testing ensuring role-based access control integrity.

Testing Focus: Authorization bypass, role manipulation, parameter tampering, privilege elevation, access control.

🎁 Referral & Reward System Testing

Referral program security testing examines reward system vulnerability testing and loyalty point manipulation. We test referral program security testing validating referral fraud prevention, loyalty point manipulation detection, reward system vulnerability testing security, and promo code abuse prevention. Our business logic vulnerability testing identifies referral fraud through business process testing examining self-referral exploitation, fake account creation for referrals, loyalty point manipulation through parameter tampering, reward duplication through transaction replay, promo code abuse through referral links, and business logic flaw testing gaps enabling attackers to generate unlimited referral rewards through fake accounts, manipulate loyalty points through parameter tampering, duplicate reward redemption, exploit referral loops, and achieve massive point accumulation through referral fraud requiring proper referral program security testing, reward system vulnerability testing validation, and business rule testing ensuring referral integrity.

Testing Focus: Self-referral, fake accounts, loyalty points, reward duplication, referral loops, point manipulation.

📊 Business Constraint Testing

Business constraint testing examines business rule testing validation and validation logic implementation. We test business rule testing identifying boundary conditions violations, edge cases exploitation, negative values handling, calculation errors in business logic, integer overflow in calculations, and rounding errors. Our business logic security evaluation identifies business constraints violations through application logic testing examining validation logic bypass, authorization logic weakening, business rule testing gaps, boundary conditions testing with extreme values, edge cases in business logic, abuse cases exploitation, parameter tampering violating constraints, and state manipulation bypassing business rules enabling attackers to violate business constraints, exploit boundary conditions, abuse edge cases, cause calculation errors, achieve integer overflow, and manipulate business logic requiring proper business constraint validation, validation logic implementation, boundary conditions testing, and comprehensive business rule testing ensuring business logic integrity and constraint enforcement.

Testing Focus: Boundary conditions, edge cases, negative values, calculation errors, integer overflow, constraint validation.

Logic Security Specialists

Our team specializes in business logic testing with extensive business logic vulnerability testing expertise. They have performed 3,600+ comprehensive business logic security assessment projects identifying 31,000+ logic flaws. Our certified business logic penetration testing experts understand e-commerce business logic testing, payment flow security testing, checkout process vulnerability testing, price manipulation testing, discount code logic testing, workflow bypass testing, race condition testing, and all logic flaws ensuring comprehensive business logic security audit and complete application logic testing coverage.

Manual Business Process Testing

Business logic flaws cannot be detected by automated scanners. Our expert manual business logic vulnerability testing discovers complex workflow bypasses, process manipulation, race conditions, TOCTOU vulnerabilities, parameter tampering, state manipulation, and abuse cases that automated tools miss ensuring complete business logic vulnerability assessment, thorough business logic flaw testing, and comprehensive workflow security testing across all business process testing and application workflow testing vectors including price manipulation, discount abuse, and inventory manipulation.

Abuse Case Testing

Our business logic testing includes comprehensive abuse cases examination including coupon abuse, promo code abuse, referral fraud, loyalty point manipulation, transaction replay, order manipulation, inventory manipulation, price manipulation, quantity manipulation, discount abuse, subscription abuse, and all business rule testing violations ensuring proper business constraints validation, authorization logic enforcement, validation logic implementation, and complete business logic security evaluation preventing all logic flaw assessment failures and workflow vulnerabilities.

Workflow Discovery

Process Mapping:

• Business process identification for business logic testing
• Workflow steps mapping for workflow security testing
• Business constraints documentation
• Transaction flow analysis for transaction logic testing
• Business rule enumeration for business rule testing
• Abuse case identification

Logic Flaw Testing

Vulnerability Assessment:

• Price manipulation testing comprehensive
• Discount code logic testing validation
• Inventory logic testing security
• Workflow bypass testing techniques
• Race condition testing with concurrent requests
• Parameter tampering and state manipulation

Abuse Case Exploitation

Attack Scenarios:

• Coupon abuse and promo code abuse testing
• Referral fraud and loyalty point manipulation
• Transaction replay and order manipulation
• TOCTOU vulnerabilities exploitation
• Privilege escalation logic testing
• Process bypasses and workflow bypasses

Report & Remediation

Documentation:

• Business logic security audit report with all findings
• Business rule testing recommendations
• Validation logic implementation guidance
• Authorization logic hardening
• Business constraints enforcement
• 60-day support and re-testing

Basic Logic Testing

Essential logic security

Small applications

• Basic business logic testing
• Workflow security testing review
• Business process testing basics
• Price manipulation testing
• Business logic report
• 30-day support

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Professional Logic Testing

Comprehensive logic security

Most applications

• Complete business logic vulnerability assessment
• E-commerce business logic testing comprehensive
• Payment flow security testing complete
• Price manipulation testing & discount abuse testing
• Workflow bypass testing extensive
• Race condition testing comprehensive
• Inventory logic testing validation
• Transaction logic testing security
• Referral program security testing
• Business rule testing complete
• Executive presentation
• 60-day support
• One free re-test

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Enterprise Logic Security

Complete logic penetration testing

Complex enterprise systems

• Complete business logic penetration testing coverage
• Advanced e-commerce business logic testing
• Checkout process vulnerability testing extensive
• All abuse cases including coupon abuse & referral fraud
• Advanced race condition testing & TOCTOU testing
• Privilege escalation logic testing comprehensive
• Subscription logic testing complete
• User registration logic testing & password reset
• Complete workflow bypass testing
• Business constraint testing extensive
• Authorization logic & validation logic testing
• Complete business logic security evaluation
• Executive presentation with Q&A
• 90-day premium support
• Unlimited re-testing

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SafetyBis business logic testing discovered critical price manipulation enabling $0.01 purchases. Their checkout process vulnerability testing found workflow bypasses skipping payment. The race condition testing prevented inventory overselling through TOCTOU vulnerabilities. Professional business logic vulnerability assessment that saved millions in fraud!

Their discount code logic testing identified unlimited coupon stacking. The referral program security testing found self-referral exploitation enabling infinite rewards. The business logic penetration testing validated authorization logic preventing privilege escalation. Best business logic security assessment we’ve experienced!

Their application logic testing found parameter tampering enabling quantity manipulation. The workflow bypass testing validated business constraints enforcement. Certified business logic testing specialists understanding transaction logic, process flow testing, and business rule testing. Highly recommend their comprehensive business logic security audit!

What is business logic testing?

Business logic testing and business logic vulnerability testing examine logic flaws and workflow vulnerabilities in business processes. Professional business logic penetration testing evaluates e-commerce business logic testing through payment flow security testing, checkout process vulnerability testing, price manipulation testing, discount code logic testing, inventory logic testing, workflow bypass testing, race condition testing, and transaction logic testing. Comprehensive business logic security assessment validates business rule testing, authorization logic, validation logic, and business constraints preventing price manipulation, discount abuse, coupon abuse, referral fraud, loyalty point manipulation, workflow bypasses, process bypasses, race conditions, TOCTOU vulnerabilities, and all logic flaws through proper application logic testing and business process testing.

How much does business logic testing cost?

Business logic testing cost varies based on application complexity. Basic business logic testing costs $3,000-4,500 for simple applications. Professional business logic vulnerability testing ranges $8,500-10,500 for comprehensive testing including e-commerce business logic testing, payment flow security testing, and workflow bypass testing. Enterprise business logic penetration testing costs $16,000-19,000 for complex applications with complete business logic security assessment. Investment prevents logic flaw breaches averaging $5.2 million making business logic vulnerability assessment extremely cost-effective.

What’s included in logic security reports?

Every business logic security audit includes comprehensive documentation covering logic flaws through business logic vulnerability testing, price manipulation testing findings, discount code logic testing issues, workflow bypass testing results, race condition testing with TOCTOU vulnerabilities, business rule testing gaps, authorization logic weaknesses, validation logic failures, business constraints violations, and detailed business logic flaw testing recommendations ensuring development teams implement proper business process testing, workflow security testing, transaction logic testing validation, and complete application logic testing preventing price manipulation, discount abuse, workflow bypasses, and all logic flaws.

3,600+ Apps

Logic testing expertise

Logic Certified

Security specialists

All Logic Flaws

Complete coverage

60-Day Support

Remediation help