API Security Testing Company in Nigeria

API Security Testing Company in Nigeria | Deejoft

APIs have become the connective tissue of modern Nigerian businesses — powering mobile banking apps, fintech integrations, e-commerce platforms, and enterprise systems that need to talk to each other in real time. But this same connectivity has made APIs one of the most exploited attack surfaces in the country’s digital economy. Unlike a traditional web application, an insecure API can expose vast amounts of data or functionality directly, often without the visual cues that might tip off a user or even a developer that something is wrong.

Deejoft provides specialized API security testing for Nigerian businesses — identifying the authentication flaws, data exposure risks, and logic vulnerabilities that generic security scans routinely miss. This article explains why API security has become critical and how Deejoft’s testing approach works.

Why API Security Is a Growing Priority in Nigeria

• APIs power the core of digital finance. Nearly every fintech, bank, and payment platform in Nigeria depends on APIs to move money, verify identity, and share data with partners — making API security directly tied to financial security.
• Explosive growth in API usage. As businesses integrate more third-party services — payment gateways, identity verification, logistics, communication tools — the number of APIs in production has grown far faster than security oversight has kept pace.
• APIs often bypass traditional security controls. Because APIs are built for machine-to-machine communication, they frequently lack the same scrutiny applied to user-facing web interfaces, even though they may expose the same or more sensitive data.
• Mobile app growth drives API growth. Every mobile banking or fintech app relies on backend APIs, and mobile-specific API vulnerabilities are increasingly common attack vectors.
• Regulatory data protection exposure. Insecure APIs are a leading cause of large-scale data breaches, creating direct NDPR compliance risk for the businesses that own them.

Common API Vulnerabilities Deejoft Tests For

Deejoft’s API security testing is structured around the OWASP API Security Top 10 and real-world exploitation techniques, including:

1. Broken Object Level Authorization (BOLA) — where a user can access another user’s data by simply changing an ID in a request.
2. Broken authentication — weak token handling, session management flaws, and improper implementation of OAuth or JWT.
3. Excessive data exposure — APIs returning more data than the client application actually needs, exposing sensitive fields.
4. Lack of rate limiting — allowing brute-force attacks, credential stuffing, and resource exhaustion.
5. Broken function-level authorization — where regular users can access administrative functions due to improper permission checks.
6. Mass assignment vulnerabilities — allowing attackers to modify fields they shouldn’t have access to by manipulating request parameters.
7. Security misconfiguration — including verbose error messages, missing security headers, and exposed debug endpoints.
8. Injection vulnerabilities — SQL injection, NoSQL injection, and command injection through API parameters.
9. Improper inventory management — undocumented or deprecated API endpoints (shadow APIs) still accessible and unmonitored.
10. Unsafe consumption of third-party APIs — vulnerabilities introduced through trust in external API responses without proper validation.

Deejoft’s API Security Testing Process

1. API Discovery and Inventory

We start by mapping your complete API surface, including documented endpoints, undocumented “shadow” APIs, and third-party integrations — you can’t secure what you don’t know exists.

2. Authentication and Authorization Testing

Deejoft rigorously tests how your API handles identity and access control, attempting to access data and functions outside a test account’s intended permissions.

3. Business Logic Testing

Beyond technical vulnerabilities, we test for logic flaws specific to your application — such as manipulating transaction amounts, bypassing payment steps, or exploiting workflow sequencing.

4. Data Exposure Analysis

We review API responses for excessive data exposure, ensuring sensitive fields (passwords, tokens, personal data) aren’t inadvertently returned to clients that don’t need them.

5. Automated and Manual Testing Combined

Deejoft combines automated scanning tools with manual, expert-driven testing — because the most damaging API vulnerabilities are usually business-logic flaws that automated tools can’t detect on their own.

6. Detailed Reporting and Remediation Support

We provide a clear report ranking vulnerabilities by real-world risk and business impact, along with practical remediation guidance your development team can act on immediately.

7. Retesting and Verification

After your team implements fixes, Deejoft retests affected endpoints to confirm vulnerabilities have been properly resolved, not just superficially patched.

Who Needs API Security Testing

• Fintechs and banks exposing APIs for mobile banking, payments, and third-party integrations
• E-commerce platforms with APIs handling customer data and payment processing
• Healthtech and insurtech companies managing sensitive personal and health data through APIs
• SaaS companies offering API access to customers and partners
• Enterprises integrating internal systems with external vendors and cloud services
• Government and public sector platforms exposing citizen data through digital service APIs

Why Choose Deejoft for API Security Testing

• OWASP-aligned methodology. Our testing follows the OWASP API Security Top 10 framework, the industry standard for identifying real-world API risks.
• Business logic expertise. We go beyond automated scanning to manually test for the logic flaws specific to your application that generic tools consistently miss.
• Fintech and financial sector depth. Much of our API testing experience comes from high-stakes financial and payment systems, where the cost of a missed vulnerability is measured in real money.
• Actionable reporting. Our reports are written to be usable by development teams, not just security auditors — prioritized, practical, and clear.

The Cost of Unsecured APIs

An exploited API vulnerability can lead to:

• Mass data breaches, exposing thousands or millions of user records in a single exploit
• Direct financial fraud, particularly in payment and banking APIs
• Regulatory penalties under NDPR for failure to protect personal data
• Reputational damage, especially when breaches are publicly disclosed or reported in media
• Loss of partner and integration trust, as businesses reassess API access after a breach

Getting Started

Deejoft typically begins API security testing engagements with a scoping conversation to understand your API architecture and priority endpoints, followed by a structured testing engagement and a detailed findings report with clear remediation guidance.

Frequently Asked Questions

How is API security testing different from regular web application penetration testing? API testing focuses specifically on the machine-to-machine communication layer — authentication tokens, data payloads, and business logic exposed through endpoints — rather than the visual web interface, requiring specialized tools and techniques.

Do you test both REST and GraphQL APIs? Yes. Deejoft’s team tests REST, GraphQL, and SOAP APIs, adapting methodology to the specific architecture in use.

How long does an API security assessment take? Timelines depend on the number of endpoints and complexity of your API, but most engagements range from one to three weeks.

Can you test APIs that are still in development, before launch? Yes. Testing pre-launch APIs is one of the most effective ways to catch vulnerabilities before they reach production and real user data.

API Security Testing Company in Nigeria | API Security Testing Company in Nigeria