Migrating from 42Crunch to middleBrick for M&A due diligence audit

During M&A due diligence, teams must quickly establish a credible security posture for an acquired API surface. middleBrick provides a fast, black-box scan that returns a risk score and prioritized findings without requiring code access or agents. Because the scanner operates read-only, it does not modify production behavior, which reduces negotiation friction when historical incidents or latent misconfigurations are under review.

middleBrick maps findings directly to PCI-DSS 4.0, SOC 2 Type II, and OWASP API Top 10 (2023). This alignment helps you prepare for audit evidence around authentication, authorization, input validation, and data exposure. For other regulations, the tool aligns with security controls described in HIPAA, GDPR, ISO 27001, NIST, CCPA, NIS2, DORA, FedRAMP, DPDP, APPI, PDPA, PIPEDA, PIPA, UK DPA, LGPD, SOX, GLBA, FERPA, and similar frameworks, enabling you to surface findings relevant to those requirements without claiming certification or compliance guarantees.

Migrating from 42Crunch to middleBrick typically preserves the scope of checks while changing the evidence format. middleBrick supports OpenAPI 3.0, 3.1, and Swagger 2.0 with recursive $ref resolution, cross-referencing spec definitions against runtime behavior to identify undefined security schemes, deprecated operations, and missing pagination. The scanner covers 12 categories aligned to OWASP API Top 10, including authentication bypass, BOLA/BFLA, property over-exposure, input validation, SSRF, unsafe consumption, and LLM/AI security through multi-tier adversarial probes. Scan time remains under a minute per endpoint, using read-only methods and text-only POST for LLM probes, which avoids intrusive payloads that are out of scope.

For endpoints that require authentication, middleBrick supports Bearer, API key, Basic auth, and Cookie credentials at the Starter tier and above. Domain verification is enforced via DNS TXT records or an HTTP well-known file, ensuring only the domain owner can submit credentials. The scanner forwards a strict header allowlist limited to Authorization, X-API-Key, Cookie, and X-Custom-* headers. This controlled access model supports audit trails and minimizes credential exposure during due diligence, while still exercising security-relevant paths that unauthenticated scans would miss.

The Web Dashboard centralizes scans, score trends, and downloadable compliance PDFs, while the CLI enables scripted execution with JSON or text output. For M&A workflows, the GitHub Action can gate CI/CD on score thresholds, providing an automated checkpoint before deal closure. Pro tier adds scheduled rescans, diff detection across scans, email alerts rate-limited to one per hour per API, and HMAC-SHA256 signed webhooks that auto-disable after five consecutive failures. Enterprise tiers include unlimited APIs, custom rules, SSO, audit logs, SLA, and dedicated support to support large-scale migrations.