middleBrick vs Tenable

middleBrick is a black-box API security scanner that submits requests and analyzes responses. It does not require agents, SDKs, or access to source code and supports any language or framework. Scan duration is under one minute, using read-only methods plus text-only POST for LLM probes. Tenable.io offers broad vulnerability coverage for networks and infrastructure, with passive and active scanning across on-premises and cloud assets. Its coverage includes protocol analysis, credentialed checks, and continuous monitoring, which can extend scan breadth but may require more setup when focusing on API surfaces.

middleBrick focuses on the OWASP API Top 10 (2023) and maps findings to PCI-DSS 4.0 and SOC 2 Type II controls. It detects 12 categories including authentication bypass, JWT misconfigurations, BOLA, BFLA, input validation, data exposure, SSRF indicators, and LLM security probes across multiple scan tiers. Tenable.io maps findings to frameworks such as PCI-DSS, SOC 2, and other compliance standards, providing broad vulnerability mapping across IT environments. For API-specific controls, middleBrick aligns closely with OWASP API Top 10, while Tenable coverage may require additional configuration to emphasize API-specific risks.

middleBrick requires no on-premises appliance or software installation; authenticated scanning on the Starter tier and above uses Bearer, API key, Basic auth, or cookies, protected by a domain verification gate. Only a narrow allowlist of headers is forwarded, and OpenAPI 3.0/3.1 and Swagger 2.0 specs are parsed with recursive $ref resolution to cross-reference runtime findings. Tenable.io deployments may involve agents or connectors depending on the target environment, and credentialed scans require managed credentials and ongoing maintenance. Integration options for middleBrick include a web dashboard, CLI, GitHub Action, MCP server for AI tools, and a programmatic API, enabling CI/CD gating with minimal footprint.

middleBrick Pro tier provides scheduled rescans every 6 hours, daily, weekly, or monthly, with diff detection to surface new or resolved findings. Alerts are rate-limited to one email per hour per API, and webhooks are HMAC-SHA256 signed, auto-disabling after five consecutive failures. Data is deletable on demand and purged within 30 days of cancellation, and scan data is never sold or used for model training. Tenable.io pricing and continuous monitoring options vary by platform and sensor footprint, often involving per-agent or per-scanner models. middleBrick pricing tiers are fixed, with free and paid plans that define scan limits, monitoring features, and compliance report capabilities.

middleBrick does not fix, patch, or block issues; it reports findings with remediation guidance. It does not execute active SQL injection or command injection payloads, does not detect business logic vulnerabilities, and does not perform blind SSRF testing. It is not a replacement for a human pentester in high-stakes audits. Tenable.io similarly does not remediate issues and may require manual investigation to contextualize findings. Both tools should be part of a layered security strategy, with clear ownership of follow-up and validation steps.