Penetration Testing in San Francisco, CA

The San Francisco and Bay Area threat landscape

Attackers in the Bay Area go after identity before infrastructure. A typical SaaS or AI company here has no data centre to breach: its crown jewels sit in a cloud tenant, a source-code platform, a CI/CD pipeline and a few dozen SaaS admin consoles, all reachable through a single sign-on identity. The intrusion pattern that defines the region was set out in public in September 2022, when a San Francisco-headquartered ride-hailing company disclosed that an attacker had obtained a contractor's password, bombarded the contractor with multi-factor push requests until one was accepted, posed as internal IT over a messaging app, and then found administrator credentials for a privileged-access management platform hard-coded in a script on an internal network share. Every step in that chain is still found in Bay Area engagements: MFA that can be fatigued or socially engineered, help desks that reset factors on a convincing phone call, secrets in scripts, repositories and build logs, and service accounts with standing administrator rights. AI companies add a second surface. Model endpoints, retrieval pipelines, agent tool-calls and plugin integrations can be manipulated through prompt injection, insecure output handling and excessive agency, the failure modes catalogued in the OWASP LLM Top 10 2025, and training data and model weights have become targets in their own right. Fintech and payments platforms carry API business-logic risk: broken object-level authorisation, race conditions in ledger and payout flows, and webhook endpoints that trust the caller. Biotech companies in South San Francisco hold clinical and molecule data that state-aligned groups collect deliberately. California regulates the outcome directly: the California Consumer Privacy Act as amended by the CPRA requires reasonable security, gives consumers a private right of action when unencrypted personal information is breached through a failure to maintain it, and since 1 January 2026 the California Privacy Protection Agency's cybersecurity-audit regulations require larger businesses to complete independent cybersecurity audits, with the first certifications due from April 2028. Engagements in San Francisco routinely uncover over-privileged OAuth integrations between SaaS tools, long-lived cloud access keys in repositories, staging environments that share production identity, and AI features that will disclose another tenant's data when asked in the right way.

Compliance frameworks we report against

Most Bay Area reports end up in three places: a customer's security review, an auditor's SOC 2 or PCI file, and, increasingly, a California privacy program. Each engagement therefore ships with a short attestation letter that can be shared under NDA, a full technical report with reproducible proof-of-concept steps, and a findings register mapped to the controls listed here.

• California Consumer Privacy Act as amended by the CPRA (Cal. Civ. Code 1798.100 et seq.), including the duty to maintain reasonable security and the private right of action for breaches in section 1798.150
• California Privacy Protection Agency cybersecurity-audit regulations, in effect since 1 January 2026, with the first audit certifications due from April 2028 for the largest businesses
• California breach notification law (Cal. Civ. Code 1798.82) and the reasonable-security duty in section 1798.81.5
• California Confidentiality of Medical Information Act for health data held outside HIPAA
• California Department of Financial Protection and Innovation oversight of licensed fintech, lending and money-transmission businesses
• Form 8-K Item 1.05 incident disclosure and Regulation S-K Item 106 governance reporting for listed Bay Area software companies
• GLBA Safeguards Rule (16 CFR Part 314) for non-bank financial institutions
• 45 CFR 164.308(a)(8) periodic evaluation for covered entities and digital-health business associates
• Requirement 11.4 of PCI DSS v4.0.1 for processors, issuers and merchants with card data in scope
• SOC 2 common criteria CC7.1 and CC7.4 as tested in Type II reports
• OWASP LLM Top 10 2025 and the NIST AI Risk Management Framework for AI systems
• FedRAMP Rev. 5 CA-8 penetration testing for SaaS sold to federal agencies
• NIST SP 800-115 as the methodological baseline for planning, execution and reporting

Why San Francisco organisations choose HackersHub

Almost everything a Bay Area software company needs tested lives behind a login or a cloud API, so the physical distance between Amsterdam and San Francisco matters less than in any other US market we serve. HackersHub, founded in the Netherlands in 2015 and with more than 2,500 completed engagements, tests SaaS platforms, AI features, payment APIs and cloud tenants remotely from Amsterdam, which also means a European parent or customer gets a team that already understands GDPR and NIS2 expectations. When a scope includes office networks, wireless, laboratory systems in South San Francisco or hardware in Santa Clara, testers fly in for the on-site window, and vetted US delivery partners add capacity under our methodology when an engagement needs people on the ground for longer. There is no HackersHub office in California or elsewhere in the US; the full-scale US market entry is planned for the first quarter of 2027. Michael van Mameren (OSCP) leads engagements, every tester holds at least OSCP, OSWE and CREST holders cover application and infrastructure depth, and the report includes a retest of medium and higher findings within 90 days. Clients score the work 4.9/5 over 127 reviews.