NSAuditor AI vs Sirius

NSAuditor AI is an open-source network security scanner that runs on a customer’s infrastructure and can be configured to operate fully offline. It scans network hosts and CIDR subnets, AWS, Azure, GCP, TLS, DNS, and operational technology targets; authenticated and continuous scanning are supported. Community includes 27 scanner plugins, parallel subnet scanning, webhook alerts, and exports in JSON, HTML, SARIF, and CSV. AI analysis is available in every tier through OpenAI, Claude, or Ollama with customer-provided API keys. Pro adds offline-first NVD CVE matching and risk scoring. Enterprise adds cloud auditors and evidence packs for listed frameworks including SOC 2, HIPAA, PCI DSS v4.0.1, and ISO/IEC 27001:2022. The maker says scan data, findings, and reports remain on the customer’s machine, and license checks can work offline. Community costs nothing; Pro costs $39 a year or $49 a month. Enterprise plans cost $2,000 a year, $5,000 a year, or $10,000 a year. It supports Windows, macOS, and Linux.

Sirius is an open-source vulnerability scanner for security teams that want operator control over discovery and triage. It combines network discovery, CVE detection, agent telemetry, and scanning through Nmap and Naabu. The Vulnerability Navigator provides severity groupings, CVSS-based filters, and export options; the Operator Console supports command execution, command history, and active-agent management. Dashboards show service health, infrastructure metrics, vulnerability trends, and centralized logs. Sirius can run in production or development mode through Docker Compose. Its listed minimum requirements are Docker Engine 20.10.0+ with Compose V2, 4 GB RAM, and 10 GB of free disk space. Supported host systems are Linux, macOS, and Windows through WSL2. REST endpoints on port 9001 use an API key, with documentation linking to an API reference and Go SDK. The Sirius Scan plan is free for self-hosted Docker use. Community support is available through Discord, GitHub Issues, and GitHub Discussions; the support page also describes enterprise priority support.