Wallarm for M&A due diligence audit
What middleBrick covers
- Black-box API scanning without agents or code access
- Risk scoring from A to F with prioritized findings
- Detection of OWASP API Top 10 (2023) categories
- Authenticated scanning with header allowlist
- Scheduled continuous monitoring and diff detection
- Integration options via CLI, dashboard, webhooks, and MCP Server
Scope and objectives of M&A due diligence API testing
During M&A due diligence, you need a repeatable, low-friction way to surface technical risk across a target’s public and partner-facing APIs. The objective is not to perform an exhaustive penetration test, but to quickly identify high-impact weaknesses that could affect security posture, compliance evidence, or operational continuity. This workflow favors non-intrusive methods that do not require code or agent deployment and that complete in under a minute per endpoint.
How middleBrick maps to audit frameworks and risk prioritization
middleBrick maps findings to OWASP API Top 10 (2023), helping you prepare for SOC 2 Type II evidence collection and aligning with security controls described in PCI-DSS 4.0. Each scan produces a risk score from A to F and a prioritized list of findings, enabling the diligence team to focus on authentication bypass, authorization flaws, data exposure, and injection-related issues that commonly trigger remediation during transactions.
Black-box scanning characteristics and operational fit
As a black-box scanner, middleBrick requires no agents, SDKs, or code access and works with any language, framework, or cloud. It uses read-only methods such as GET and HEAD, and text-only POST for LLM probes, which minimizes operational risk during due diligence. Scan times remain under a minute, and sensitive infrastructure like private IPs, localhost, and cloud metadata endpoints are blocked at multiple layers.
Authentication support and domain verification requirements
Authenticated scanning is available from the Starter tier onward, supporting Bearer tokens, API keys, Basic auth, and cookies. Before credentials are accepted, the domain owner must complete a verification gate using a DNS TXT record or an HTTP well-known file. Only a limited set of headers is forwarded, including Authorization, X-API-Key, Cookie, and X-Custom-* headers, reducing the chance of credential misuse during audits.
Continuous monitoring and reporting for diligence timelines
With Pro tier or higher, you can schedule rescans at intervals such as every 6 hours, daily, weekly, or monthly to track score drift across negotiation periods. Diff detection highlights new findings and resolved items, while email alerts are rate-limited to one per hour per API. HMAC-SHA256 signed webhooks deliver findings to integration pipelines, and customer data can be deleted on demand within 30 days of cancellation.