API Security

2.

Fundamental Security Principles

2.1.

Core Security Concepts

2.1.1.

Confidentiality in API Context

2.1.1.1.

Data Protection in Transit

2.1.1.2.

Data Protection at Rest

2.1.1.3.

Information Disclosure Prevention

2.1.2.

Integrity Assurance

2.1.2.1.

Data Tampering Prevention

2.1.2.2.

Message Authentication

2.1.2.3.

Non-Repudiation

2.1.3.

Availability Guarantees

2.1.3.1.

2.1.3.2.

Performance Consistency

2.1.3.3.

Resilience to Attacks

2.2.

Security Design Principles

2.2.1.

Defense in Depth

2.2.1.1.

Layered Security Controls

2.2.1.2.

Multiple Security Barriers

2.2.1.3.

Redundancy Planning

2.2.2.

Principle of Least Privilege

2.2.2.1.

Minimal Access Rights

2.2.2.2.

Just-in-Time Access

2.2.2.3.

Regular Permission Reviews

2.2.3.

Secure by Design

2.2.3.1.

Security-First Architecture

2.2.3.2.

Secure Defaults

2.2.3.3.

Fail-Safe Mechanisms

2.2.4.

Zero Trust Architecture

2.2.4.1.

Never Trust, Always Verify

2.2.4.2.

Continuous Verification

2.2.4.3.

Micro-Segmentation

2.3.

Threat Modeling for APIs

2.3.1.

Asset Identification

2.3.1.1.

API Endpoints Mapping

2.3.1.2.

Data Flow Analysis

2.3.1.3.

Trust Boundaries

2.3.2.

Threat Enumeration

2.3.2.1.

Attack Vector Analysis

2.3.2.2.

Threat Actor Profiling

2.3.2.3.

Attack Tree Construction

2.3.3.

Risk Assessment

2.3.3.1.

Impact Analysis

2.3.3.2.

Likelihood Evaluation

2.3.3.3.

Risk Prioritization

2.3.4.

Countermeasure Planning

2.3.4.1.

Mitigation Strategies

2.3.4.2.

Control Implementation

2.3.4.3.

Residual Risk Management

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