Penetration Testing Services in San Francisco, CA

QUANT LAB USA runs senior, founder-led pentests for SF clients where the engineering reviewer is going to ask hard questions and the report has to answer them. Web application, network, AD, and MITRE ATT&CK-aligned engagements. Code samples and architecture walkthroughs available on request — the kind of technical bake-off SF buyers actually run.

Four engagement types cover most of what San Francisco clients ask for. Web application pentests — OWASP Top 10, business logic, authentication, authorization, and API security across REST and GraphQL. Internal network and Active Directory engagements — Kerberoasting, AS-REP roasting, lateral movement, ADCS abuse, and credential dumping from an assumed-breach starting position. External perimeter assessments — attack surface mapping, exposed services, and credential exposure. Wireless engagements — corporate Wi-Fi, guest network isolation, and BYOD segmentation.

Every technique used is mapped to a MITRE ATT&CK ID so your detection team — in-house or MSSP — can see what your defenses caught and what they missed. Reports include the executive summary, full technical narrative, evidence chain, and a remediation roadmap prioritized by exploitability rather than CVSS alone.

For SF Series A+ SaaS, scope is typically a credentialed web app and API test against the production application combined with cloud IAM and resource-policy review — the security gate that lead investors actually probe.

See our Multi-Strategy Trading System for a representative engagement. An in-house trading system we built and ran — the same threat model we apply to SF quant-firm engagements.