What is Domain-Driven Security?

Domain-Driven Security aligns security controls with business domains rather than technical infrastructure. It focuses on protecting data and processes based on their business context and sensitivity, enabling more effective and relevant security measures.

Core Principles

Business Alignment Security reflects business priorities.

Data-Centric Protect data, not just perimeters.

Context-Aware Controls match data sensitivity.

Domain Ownership Business owns security decisions.

Implementation Approach

1. Identify Domains

Business functions
Data types
Processes

2. Classify Data

Sensitivity levels
Regulatory requirements
Business impact

3. Define Policies

Domain-specific rules
Data handling requirements
Access controls

4. Implement Controls

Technical enforcement
Monitoring
Compliance verification

Benefits

Business-relevant security
Clearer ownership
Reduced complexity
Better compliance
Efficient resources

Domain Examples

Customer Domain

PII protection
Consent management
Access controls

Financial Domain

Transaction security
Fraud detection
Audit trails

HR Domain

Employee data
Access provisioning
Separation of duties

Relationship to Zero Trust

Complements zero trust by:

Defining what to protect
Informing access policies
Contextual decisions