Bishop Fox
APIBishop Fox is an offensive security firm providing penetration testing, red team operations, and continuous attack surfa
bishopfox.comLast updated: April 2026
Bishop Fox is an offensive security firm providing penetration testing, red team operations, and continuous attack surface management services.
About
Bishop Fox is a leading offensive security company that specializes in penetration testing, red team operations, and attack surface management. Founded in 2005 by experts from prominent security research backgrounds, Bishop Fox has built a reputation for elite offensive security work that helps organizations understand their true security posture from an attacker's perspective.
Penetration testing services from Bishop Fox cover web application security, network infrastructure, cloud environments, mobile applications, hardware and IoT devices, and social engineering. Each engagement is conducted by experienced security consultants with deep expertise in their respective domains. Unlike automated scanning services, Bishop Fox penetration tests involve human creativity and persistence in attempting to exploit identified vulnerabilities, providing a realistic assessment of how an actual attacker would approach the target.
Red team operations simulate sophisticated, real-world attack campaigns against an organization's defenses. A red team engagement involves a team of skilled attackers attempting to achieve specific objectives such as gaining access to sensitive data, compromising critical systems, or achieving persistent access to the network, using the same tactics, techniques, and procedures (TTPs) employed by advanced threat actors. The goal is not just to find vulnerabilities but to test the effectiveness of the organization's detection and response capabilities.
Cosmos, Bishop Fox's continuous attack surface management platform, provides automated external attack surface discovery and vulnerability identification at scale. The platform continuously maps an organization's internet-facing assets, identifies vulnerabilities and exposures, and enables security teams to maintain visibility into their attack surface between point-in-time penetration tests. Expert validation from Bishop Fox consultants ensures that findings are accurate and prioritized correctly.
Security research is a core part of Bishop Fox's identity. The company's research team regularly discovers and responsibly discloses novel vulnerabilities in widely used software, hardware, and protocols. Research publications, conference presentations at DEF CON, Black Hat, and other venues, and open source tool releases contribute to the broader security community's knowledge.
Bishop Fox serves large enterprises, financial institutions, healthcare organizations, and government agencies that need sophisticated security validation from a trusted partner.
Positioning
Bishop Fox is the original offensive security firm that pioneered the concept of continuous attack surface management. For over two decades, their team of elite security researchers and penetration testers has found critical vulnerabilities in products from Apple, Google, Microsoft, and Meta — giving them a depth of real-world exploitation expertise that pure software vendors simply cannot match. This research pedigree directly informs their commercial products and services.
What makes Bishop Fox unique is the combination of human expertise with an automated platform. Their Cosmos platform performs continuous external attack surface discovery and prioritization, but it's backed by a team of over 100 offensive security consultants who conduct manual penetration testing, red team exercises, and application security assessments. This hybrid model catches both the automated low-hanging fruit and the complex, chained vulnerabilities that only skilled human testers can identify.
What You Get
- Cosmos Platform
Continuous external attack surface management that discovers, fingerprints, and prioritizes exposed assets across your entire digital footprint — including shadow IT and forgotten infrastructure. - Penetration Testing
Manual security assessments by expert researchers covering networks, web applications, mobile apps, cloud environments, and embedded systems with detailed remediation guidance. - Red Team Operations
Full-scope adversary simulation including social engineering, physical access, and technical exploitation to test detection and response capabilities against realistic threats. - Application Security
Source code review and dynamic testing of applications with focus on business logic flaws, authentication bypasses, and vulnerabilities that automated scanners miss. - Cloud Penetration Testing
Specialized assessments of AWS, Azure, and GCP environments targeting misconfigurations, IAM policy weaknesses, and cloud-specific attack paths.
Core Areas
Attack Surface Management
Continuous discovery and monitoring of external assets with risk-based prioritization, change detection, and integration with vulnerability management workflows.
Offensive Security Services
Expert-led penetration testing, red teaming, and security assessments that simulate real-world attackers to find vulnerabilities before adversaries do.
Security Research
Ongoing vulnerability research program that contributes to the security community while keeping Bishop Fox's methodologies and tooling at the cutting edge of offensive security.
Why It Matters
Automated security scanners find known vulnerabilities, but sophisticated attackers chain together seemingly low-risk findings into devastating attack paths. Bishop Fox bridges this gap with an approach that combines the breadth of automation with the creativity and context of human attackers. Their researchers regularly demonstrate at DEF CON and Black Hat, and their findings have led to patches in some of the world's most widely used software.
For organizations facing advanced threats, Bishop Fox provides the adversary's perspective — not just a list of CVEs, but a demonstrated understanding of how an attacker would actually breach their environment. This insight is invaluable for security teams trying to prioritize limited resources against an ever-expanding attack surface.
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