Zero Trust Architecture

Overview

This user story covers the implementation of a zero trust security model where all access requests are verified regardless of source, implementing the principle of least privilege and continuous validation.

User Stories

Implement Zero Trust Security Model

As a platform administrator,
I want to implement a zero trust architecture,
So that all access requests are verified regardless of source and the platform maintains maximum security.

Acceptance Criteria: - Given the platform implements zero trust architecture - When any user or system attempts to access resources - Then the system should: - Verify every access request regardless of source location - Authenticate and authorize each request individually - Apply the principle of least privilege for all access - Continuously validate access throughout the session - Log all access attempts for audit purposes - And no implicit trust should be granted based on network location - And all communications should be encrypted end-to-end - And access should be granted on a need-to-know basis only - And the system should assume breach and verify continuously

Verify All Access Requests

As a platform administrator,
I want to ensure all access requests are verified,
So that no unauthorized access can occur regardless of the request source.

Acceptance Criteria: - Given a user or system attempts to access any resource - When the access request is processed - Then the system should: - Authenticate the identity of the requester - Verify the requester's authorization for the specific resource - Check the current security context and risk level - Validate the request against current security policies - Apply appropriate access controls based on the resource sensitivity - And verification should occur for every request, not just initial login - And the system should handle verification failures gracefully - And verification should be transparent to authorized users - And verification processes should be logged for compliance

Implement Principle of Least Privilege

As a platform administrator,
I want to enforce the principle of least privilege access,
So that users and systems only have access to resources they absolutely need.

Acceptance Criteria: - Given users and systems require access to platform resources - When access permissions are assigned - Then the system should: - Grant minimum necessary permissions for each role - Regularly review and adjust permissions based on actual usage - Automatically revoke unused permissions after defined periods - Require explicit approval for elevated access requests - Implement time-limited access for sensitive operations - And default access should be deny-all with explicit allow rules - And permissions should be role-based and regularly audited - And temporary elevated access should automatically expire - And all permission changes should be logged and approved

Enable Continuous Access Validation

As a platform administrator,
I want to implement continuous validation and monitoring of access,
So that access can be revoked immediately if security conditions change.

Acceptance Criteria: - Given users have active sessions on the platform - When security conditions or user context changes - Then the system should: - Continuously monitor user behavior and access patterns - Detect anomalous access patterns or suspicious activities - Automatically revoke access when risk levels increase - Re-authenticate users when accessing sensitive resources - Validate device and location context throughout sessions - And validation should occur without disrupting normal user workflows - And the system should adapt access controls based on real-time risk assessment - And users should be notified of security-related access changes - And continuous validation should be configurable per resource type

Implement Network Micro-segmentation

As a platform administrator,
I want to implement micro-segmentation of network resources,
So that lateral movement is prevented even if one component is compromised.

Acceptance Criteria: - Given the platform consists of multiple services and components - When network access is configured - Then the system should: - Segment network traffic between different service tiers - Implement firewall rules between micro-segments - Control east-west traffic flow between services - Monitor and log all inter-service communications - Apply different security policies to different network segments - And each service should only communicate with explicitly authorized services - And network segmentation should be enforced at multiple layers - And segment boundaries should be clearly defined and documented - And segmentation rules should be regularly reviewed and updated

Secure Access Regardless of Location

As a platform administrator,
I want to ensure secure access to resources regardless of network location,
So that users can work securely from any location without compromising security.

Acceptance Criteria: - Given users access the platform from various locations and networks - When users connect to platform resources - Then the system should: - Apply consistent security policies regardless of user location - Encrypt all communications using strong encryption protocols - Validate device security posture before granting access - Implement secure remote access mechanisms (VPN, zero trust network access) - Monitor and log access from different locations - And location should not determine trust level or access permissions - And the system should detect and respond to access from unusual locations - And secure access should be maintained across different network conditions - And location-based risk factors should be considered in access decisions

Maintain Comprehensive Access Logging

As a platform administrator,
I want to log all access attempts and security events,
So that I can monitor security posture and investigate incidents.

Acceptance Criteria: - Given the zero trust architecture is implemented - When any access attempt or security event occurs - Then the system should log: - All authentication and authorization attempts - Access granted and denied events with reasons - Changes to permissions and security policies - Anomalous behavior and security alerts - System security configuration changes - And logs should be immutable and tamper-evident - And logs should be stored securely with appropriate retention periods - And log analysis should provide actionable security insights - And logs should support compliance and audit requirements

Technical Notes

Zero Trust Implementation Components

• Identity and Access Management (IAM) system
• Multi-factor authentication (MFA) enforcement
• Device trust and compliance validation
• Network micro-segmentation
• Continuous monitoring and analytics
• Policy enforcement points throughout the architecture

Integration Requirements

• Integration with User and Role entities
• Connection to AuditLog for comprehensive logging
• Integration with Auth0 for identity verification
• Network security controls and monitoring systems

Security Standards Compliance

• Alignment with NIST Zero Trust Architecture guidelines
• Compliance with industry security frameworks (ISO 27001, SOC 2)
• Integration with existing security tools and SIEM systems
• Regular security assessments and penetration testing

Performance Considerations

• Zero trust verification should not significantly impact user experience
• Efficient caching of authorization decisions where appropriate
• Scalable architecture to handle high-volume access requests
• Optimized network routing within micro-segments

Dependencies

• Identity and Access Management system
• Network infrastructure and security controls
• Monitoring and logging infrastructure
• Security policy management system

Priority

High - Critical for security, required for first project drop (initial) and second project drop (complete)