NIST CSF

Trade — Zero-Tolerance Cryptocurrency Trading Platform

Challenge

Build a cryptocurrency trading platform where the primary design goal is preventing catastrophic loss — not maximizing returns. The platform must survive compromised credentials, rogue orders, and operator error with multiple independent safety layers.

Solution Architecture

Defense-in-Depth Design

Five independent components, each with separate credentials and failure domains:

┌─────────────────────────────────────────────────────────────┐
│ Bybit Exchange (Testnet / Live)                              │
└────────────────┬────────────────────────────────────────────┘
                 │ WebSocket + REST
                 ▼
      ┌──────────────────────┐
      │    Freqtrade Pod     │ ◄── API key: Orders only, no transfers
      │ Strategy execution   │
      └──────┬───────────────┘
             │
      ┌──────┴──────────────────────────────────────────────┐
      │      Shared PVC: trade.db (OLTP) + journal.db       │
      └──────────────────────────────────────────────────────┘
             ↑                      ↑
      ┌──────┴──────┐        ┌─────┴───────┐
      │Risk Breaker │        │Journal Shim │ ◄── Read-only monitoring
      │Circuit break│        │Audit sidecar│
      └─────────────┘        └─────────────┘
             │
             ▼
      Wazuh SIEM (anomaly detection) + Grafana (dashboards)

Drawdown Ladder (Automatic Kill)

Capital Allocation: $4K per subaccount
├── -5% daily    → Alert + position review
├── -8% weekly   → Auto-reduce position size
├── -15% monthly → Scale to zero, require manual restart
└── -18% HWM     → Full kill-switch, key revocation

FIDO2-Authenticated Kill Switch

Emergency response in under 60 seconds:

May 8, 2026 •

Cryptocurrency Risk Management FIDO2 Kill Switch NIST CSF Zero Trust

K8s Compliance Operator — One-Day Compliance Stack

Challenge

Kubernetes teams in regulated industries spend 8-16 weeks integrating policy enforcement (Kyverno), runtime security (Falco), network isolation (Calico), secrets management (Vault), and service mesh (Istio) to meet compliance requirements. Each tool requires separate expertise, and maintaining policy coherence across tools is error-prone.

Build a single Helm chart that deploys the entire compliance stack, driven by a ComplianceProfile custom resource that automatically configures all components for the selected framework.

May 7, 2026 •

Kubernetes Operator PCI DSS SOC 2 NIST CSF ISO 27001 Policy Enforcement Runtime Security

DSO Knowledge Base — 3,163 DevSecOps Documents

Challenge

Security practitioners need quick access to tool guidance, best practices, and framework mappings. Information is scattered across vendor docs, GitHub READMEs, and blog posts. There’s no unified, queryable knowledge base that covers the full DevSecOps lifecycle.

Build a comprehensive knowledge base that:

Covers all security functions (NIST CSF 2.0)
Is queryable by AI agents (Claude Code integration)
Maintains source traceability
Supports both human browsing and programmatic access

Solution Architecture

NIST CSF 2.0 Organization

DSO Knowledge Base
├── 00-governance/      (126 docs) — Policy, GRC, compliance
├── 01-identify/        (77 docs)  — Asset discovery, threat intel
├── 02-protect/         (631 docs) — AppSec, container security
├── 03-detect/          (130 docs) — Detection engineering, SIEM
├── 04-respond/         (74 docs)  — Incident response, forensics
├── 05-recover/         (46 docs)  — Disaster recovery, BCP
├── 06-implement/       (118 docs) — Secure SDLC, gates
├── 07-platform/        (191 docs) — Infrastructure hardening
├── 08-offensive/       (106 docs) — Red team, adversary emulation
├── 09-automation/      (143 docs) — GitOps, agent orchestration
├── 10-compliance/      (61 docs)  — OSCAL, SOC CMM, kube-bench
└── 11-96: Supporting domains (algorithms, ML, finance, etc.)

Document Structure

Each document follows a consistent format:

April 27, 2026 •

DevSecOps NIST CSF Knowledge Base Security Operations Agent-Queryable

AWS PCI-DSS Platform — Multi-Tenant Compliance SaaS

Challenge

Enterprise security teams need a unified platform to manage compliance assessments, track vulnerabilities, handle incidents, and maintain asset inventories — all with proper multi-tenant isolation for managed service providers. Off-the-shelf GRC tools are expensive, inflexible, and don’t integrate well with cloud-native infrastructure.

Build a production-ready compliance platform with:

Multi-tenant architecture with Row-Level Security
Real-time alerts via WebSocket
Comprehensive REST API for automation
Multiple compliance framework support

Solution Architecture

Overview

┌─────────────────────────────────────────────────────────────────┐
│                      Frontend (React)                            │
│           Dashboard · Assessments · Incidents · Assets          │
└────────────────────────┬────────────────────────────────────────┘
                         │ HTTPS / WSS
                         ▼
┌─────────────────────────────────────────────────────────────────┐
│                    FastAPI Backend                               │
│     34+ Endpoints · JWT Auth · RBAC · Multi-tenant Middleware   │
└────────────────────────┬────────────────────────────────────────┘
                         │
         ┌───────────────┼───────────────┐
         ▼               ▼               ▼
┌────────────────┐ ┌──────────┐ ┌─────────────────┐
│  PostgreSQL    │ │ WebSocket│ │  Audit Logging  │
│  + RLS Policies│ │  Manager │ │  (Immutable)    │
└────────────────┘ └──────────┘ └─────────────────┘

API Endpoints (34+)

Domain	Count	Key Operations
Authentication	6	Login, register, refresh, password change, MFA
Compliance	7	Framework list, assessments, reports, gap analysis
Threats	4	Catalog, risk matrix, statistics, trends
Vulnerabilities	6	List, scan, remediate, severity trends
Assets	5	Inventory, topology, tagging, relationships
Incidents	5	Lifecycle, actions, timeline, metrics
WebSocket	1	Real-time security alerts

Compliance Frameworks

Framework	Controls	Use Case
PCI-DSS 4.0	270+	Payment card processing
NIST CSF 2.0	6 functions	General cybersecurity
ISO 27001:2022	93 controls	Information security
SOC 2 Type II	5 trust criteria	Service organization

Key Features

1. Multi-Tenant Architecture

# Row-Level Security enforced at database level
class TenantMiddleware:
    async def __call__(self, request, call_next):
        tenant_id = extract_tenant(request)
        # All queries automatically filtered by tenant
        set_tenant_context(tenant_id)
        return await call_next(request)

Automatic tenant isolation on every query
No cross-tenant data leakage possible
Efficient index usage with RLS policies

2. Real-Time Alerts

// WebSocket connection for live security events
const ws = new WebSocket('wss://api.example.com/ws/alerts');
ws.onmessage = (event) => {
    const alert = JSON.parse(event.data);
    // Severity: critical, high, medium, low
    if (alert.severity === 'critical') {
        showNotification(alert);
    }
};

3. Compliance Assessment Workflow

Assessment Lifecycle:
├── Draft → Configure scope, select controls
├── In Progress → Evidence collection, control testing
├── Review → Findings validation, risk rating
├── Complete → Report generation, remediation tracking
└── Archived → Historical reference

4. Vulnerability Management

# Comprehensive vulnerability tracking
class Vulnerability(Base):
    cve_id: str              # CVE-2024-XXXXX
    severity: SeverityEnum   # CRITICAL, HIGH, MEDIUM, LOW
    cvss_score: float        # 0.0 - 10.0
    affected_assets: List[Asset]
    remediation_status: RemediationStatus
    due_date: datetime
    sla_breach: bool         # Computed from severity + age

Tech Stack

Component	Technology	Purpose
API Framework	FastAPI 0.109	Async REST API
ORM	SQLAlchemy (async)	Database abstraction
Validation	Pydantic	Request/response schemas
Auth	JWT + RBAC	Authentication & authorization
Database	PostgreSQL	Primary data store + RLS
Real-time	WebSocket	Live alert streaming
Testing	pytest + coverage	Quality assurance

Security Features

OWASP Top 10 Protections

Threat	Mitigation
Injection	Parameterized queries via SQLAlchemy
Broken Auth	JWT with short TTL, refresh tokens
Sensitive Data	AES-256 encryption at rest
XXE	JSON-only APIs, no XML parsing
Broken Access	RLS + RBAC enforcement
Security Misconfig	Security headers middleware
XSS	Output encoding, CSP headers
Insecure Deserialization	Pydantic schema validation
Vulnerable Components	Dependabot, SBOM tracking
Insufficient Logging	Comprehensive audit trail

Audit Logging

# Every state-changing operation logged
@audit_log
async def create_finding(finding: FindingCreate):
    # Automatically captures:
    # - User ID, tenant ID
    # - Timestamp, IP address
    # - Before/after state
    # - Operation type
    return await finding_service.create(finding)

Project Structure

src/api/
├── main.py                # FastAPI app factory
├── config.py              # Environment config
├── middleware/            # Auth, tenant, security
├── routers/               # 34+ endpoint handlers
│   ├── auth.py
│   ├── compliance.py
│   ├── threats.py
│   ├── vulnerabilities.py
│   ├── assets.py
│   └── incidents.py
├── models/                # 15+ SQLAlchemy models
├── services/              # Business logic layer
├── schemas/               # Pydantic validation
└── websocket/             # Real-time alerts

Results & Benefits

Technical Achievements

Zero SQL injection risk: ORM-only queries with parameterization
Complete tenant isolation: RLS policies at database level
Sub-100ms API latency: Async throughout, optimized queries
100% type coverage: Pydantic schemas + Python type hints

Business Value

MSP-Ready: Multi-tenant architecture for managed services
Automation-First: Every operation accessible via API
Compliance-Mapped: Built-in framework alignment
Audit-Ready: Immutable logging for regulators

January 21, 2026 •

PCI-DSS NIST CSF Compliance Multi-tenant GRC Vulnerability Management