Broken Object-Level Authorization (BOLA)
Attackers query API endpoints (e.g. /api/users/1002) to download records belonging to other customers without authorization.
Direct Definition
What is API Security?
API Security is the technical practice of protecting application programming interfaces (REST, GraphQL, gRPC) from malicious attacks, unauthorized consumption, parameter tampering, and sensitive data leakage.
Strategic Value
Why this capability matters
Modern web and mobile applications rely entirely on backend APIs. Attackers bypass front-end interfaces to query APIs directly, stealing customer databases if endpoints lack strict authorization and rate limiting.
Consult our engineering teamOperational Challenges
Problems we solve with API Security.
Real-world engineering and organizational obstacles addressed by our architecture.
Automated Scraping and Rate Limit Bypasses
Competitors deploy bots that scrape entire product catalogs and price lists due to absent or weak API rate limiting.
Excessive Data Exposure in JSON Responses
Backend APIs return complete database objects containing hashed passwords and PII, relying on the front-end to filter fields.
Mass Assignment Vulnerabilities
Clients send unexpected JSON properties (like is_admin=true) that the backend blindly writes into the database.
Technical Capabilities
Engineering specifications and architecture.
Key technical components engineered and deployed for production stability.
OWASP API Top 10 Penetration Testing
Audit endpoints against broken authorization, resource consumption, and server-side request forgery (SSRF).
Granular Object-Level Authorization Checks
Enforce strict checks verifying that the authenticated user actually owns the specific requested record ID.
Response Filtering and Data Masking
Ensure API endpoints return only the minimal fields required by the front-end, stripping internal database metadata.
API Gateway Hardening and Rate Limiting
Implement token bucket rate limiters, web application firewalls (WAF), and schema validation at the API gateway layer.
Implementation Methodology
How we deliver production-ready systems.
Our phased delivery process establishes clear baselines, deterministic testing, and seamless systems integration:
- API Discovery and Swagger/OpenAPI Ingestion: We ingest your API specifications and map all authenticated and unauthenticated endpoints.
- Adversarial Parameter and Token Testing: We probe endpoints with manipulated JWT tokens, swapped object IDs, and corrupted data payloads.
- Mass Assignment and Fuzzing Probes: We fuzz input schemas with unexpected fields and parameter variations to detect backend vulnerabilities.
- Remediation Reporting with Code Examples: We deliver exact code patches and gateway configuration rules to secure every vulnerable endpoint.
Technology Considerations
Engineered for scale and reliability.
Conducted in alignment with OWASP API Security Top 10, using Burp Suite, Postman, JWT analyzers, and API gateway rules (Kong, Cloudflare, AWS API Gateway).
Discuss architecture detailsProduction Applications
Real-world enterprise implementations.
Concrete operational use cases illustrating measurable outcomes across commercial environments.
Mobile Banking API Security Audit
Verifying that banking mobile app APIs strictly enforce user authorization and prevent transaction manipulation.
B2B SaaS Partner API Penetration Testing
Testing third-party developer APIs to ensure partner keys cannot access confidential tenant data.
GraphQL Security Hardening
Testing GraphQL endpoints for query complexity vulnerabilities, deep nesting attacks, and batch query bypasses.
Business Impact
Measurable operational outcomes.
Tangible performance improvements achieved through disciplined engineering and validation.
Business Impact
Complete elimination of Broken Object-Level Authorization (BOLA) risks
Business Impact
Prevention of automated API scraping and credential stuffing attacks
Business Impact
Strict response payload hygiene eliminating inadvertent PII exposure
Business Impact
Hardened API gateway configurations with robust token bucket rate limiting
Common Questions
Frequently asked questions about API Security.
Clear answers to help you evaluate feasibility, data requirements, and deployment.
Broken Object-Level Authorization (BOLA) occurs when an API endpoint accepts an object identifier (like an invoice ID or account number) without verifying that the authenticated user is the legitimate owner. It is the most common cause of massive enterprise data leaks.
GraphQL requires specialized testing for query depth limits, circular query attacks, field-level permissions, and schema introspection exposure, which differ significantly from REST endpoints.
Yes. We can configure automated API security testing tools and OpenAPI schema linters in GitHub Actions or GitLab CI to intercept vulnerabilities before code is merged.