CISO Tribune

Vendor comparison · 2 companies

Bishop Fox vs Vonahi Security

Bishop Fox sells offensive security services, including penetration testing and continuous security testing. Vonahi Security sells vPenTest, an automated network penetration testing SaaS platform. vPenTest is a scripted network penetration testing platform that runs the exact same steps and processes performed by a security consultant doing a live pentest. vPenTest is a full-scale penetration testing platform that incorporates the knowledge, methodologies, techniques and commonly used tools of multiple consultants into a single platform. vPenTest covers host discovery, service enumeration, vulnerability analysis, exploitation, post-exploitation, privilege escalation and lateral movement, as well as documentation and reporting. CISO Tribune files both under Penetration testing and red team services. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Bishop Fox
  • Vonahi Security
Bishop Fox vs Vonahi Security: Products, Customers and Funding Compared
Bishop FoxBishop Fox sells offensive security services, including penetration testing and continuous security testing.bishopfox.comVonahi SecurityVonahi Security sells vPenTest, an automated network penetration testing SaaS platform. vPenTest is a scripted network penetration testing platform that runs the exact same steps and processes performed by a security consultant doing a live pentest. vPenTest is a full-scale penetration testing platform that incorporates the knowledge, methodologies, techniques and commonly used tools of multiple consultants into a single platform. vPenTest covers host discovery, service enumeration, vulnerability analysis, exploitation, post-exploitation, privilege escalation and lateral movement, as well as documentation and reporting.vonahi.io
What it sells
  • Cosmos[3][7][13][14]Bishop Fox's cloud-native technology platform and the foundation of its offensive security services.
  • Penetration Testing Services[4]Bishop Fox penetration testing across applications, networks, products, cloud, and AI systems.
  • Application Penetration Testing[3][9][14]Testing of web, mobile, and other applications, including an AI-powered portfolio option.
  • External Penetration Testing[10]Perimeter testing that emulates targeted adversaries.
  • Hardware Penetration Testing[4][11]Testing of connected devices and their ecosystems.
  • Continuous Security Testing[5][8]Managed continuous testing that Bishop Fox ties to Continuous Threat Exposure Management programs.
  • AIMap[3]Open-source tool built by Bishop Fox for testing exposed AI endpoints.
  • vPenTest[1][2][3][4][5][7][10][11][12]A SaaS platform for automated network penetration testing. vPenTest covers internal and external network environments.
Categories
Headquarters
Tempe, United States[2]Atlanta, GA, USA[1][11]
Founded
2005[1][4][8]Not stated on its pages
Ownership and funding
Not stated on its pagesOwned by Kaseya[5]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • February 10, 2026Bishop Fox announced an updated application penetration testing service that combines its expert testing teams with its proprietary AI engine, Cosmos AI.[14]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Bishop Fox sells mainly to organizations that want offensive security testing of their applications, cloud, networks, devices, and AI systems. Bishop Fox says most enterprises manage many applications with constrained budgets and headcount. Customers it describes include a healthcare technology company moving to SaaS, an energy provider facing nation-state threats to critical infrastructure, and a financial services organization. Its hardware testing is aimed at healthcare devices, consumer tech, and industrial systems. Bishop Fox says it works with customers who are looking to safely deploy AI, release a new app or service, or validate corporate governance. Cosmos is delivered as a managed platform, so customers do not deploy or maintain it themselves.Not written yet
Last verified
September 27, 2026November 12, 2026

Where they overlap

  • Penetration testing and red team services is the primary category of both Bishop Fox and Vonahi Security.

Where they differ, field by field

  • Bishop Fox is also filed under External attack surface management. Vonahi Security is also filed under Breach simulation and automated pen-testing.
  • Bishop Fox lists Cosmos, Penetration Testing Services, Application Penetration Testing, External Penetration Testing, Hardware Penetration Testing and 2 more. Vonahi Security lists vPenTest.
  • Bishop Fox is headquartered in Tempe, United States. Vonahi Security is headquartered in Atlanta, GA, USA.
  • Bishop Fox was founded in 2005.
  • Vonahi Security is owned by Kaseya.

How they differ

CISO Tribune files both Bishop Fox and Vonahi Security under Penetration testing and red team services as the primary category. Bishop Fox also appears under External attack surface management, while Vonahi Security also appears under Breach simulation and automated pen-testing. Bishop Fox sells offensive security services, including penetration testing across applications, networks, products, cloud, and AI systems, plus continuous security testing. Its Cosmos platform is operated and managed by Bishop Fox, and customers do not deploy or maintain it. Vonahi Security sells vPenTest, a SaaS platform for automated network penetration testing that covers internal and external network environments. With vPenTest, a customer deploys an agent, schedules an internal assessment and receives detailed reports within a few days.

Bishop Fox is headquartered in Tempe, United States, and was founded in 2005. Vonahi Security is headquartered in Atlanta, GA, USA, and is owned by Kaseya. Vonahi Security positions vPenTest for MSPs that offer network penetration testing to SMB clients and for internal IT teams. Bishop Fox describes customers that include a healthcare technology company moving to SaaS, an energy provider, and a financial services organization. Vonahi Security names Stratus ip, Netcotech, Insurwave, and Greene County General Hospital as vPenTest users.

On February 10, 2026, Bishop Fox announced an updated application penetration testing service that combines its expert testing teams with its proprietary AI engine, Cosmos AI. Vonahi Security is CREST accredited in both EMEA and Australasia.

What it sells: Bishop Fox

What Cosmos does[3][7][13][14]
Cosmos builds and verifies a living inventory of an organization's external attack surface. It integrates with customer workflows through Jira and ServiceNow, syncing validated findings into existing ticketing systems. Bishop Fox operates and manages Cosmos as part of its services, and customers do not deploy or maintain it.
What Penetration Testing Services does[4]
Bishop Fox penetration testing spans applications, networks, products, cloud, and AI systems. Engagements cover web and mobile apps, cloud environments in AWS, GCP, Azure, and Kubernetes, and IoT, consumer, commercial, and industrial devices.
What Application Penetration Testing does[3][9][14]
Bishop Fox runs in-depth manual and dynamic analyses of Android and iOS devices and apps, guided by OWASP testing methodologies. Bishop Fox AI-Powered Application Penetration Testing delivers validated, expert-reviewed findings across an entire portfolio.
What External Penetration Testing does[10]
Bishop Fox says its External Penetration Testing emulates targeted adversaries and results in discovery of defensive gaps, including likelihood of exploitation and business impact. Testing extends to public cloud storage services and peripheral web apps.
What Continuous Security Testing does[5][8]
Bishop Fox provides continuous security testing that it describes as integral to a successful Continuous Threat Exposure Management (CTEM) program. Its managed services identify, prioritize, and help remediate business-impacting exposures.
What AIMap does[3]
AIMap is an open-source tool built by Bishop Fox. It discovers, scores, and tests exposed AI endpoints.

Questions about Bishop Fox and Vonahi Security

What do Bishop Fox and Vonahi Security sell?
Bishop Fox sells Cosmos, Penetration Testing Services, Application Penetration Testing, External Penetration Testing, Hardware Penetration Testing and 2 more. Vonahi Security sells vPenTest.
Are Bishop Fox and Vonahi Security in the same category?
Yes. Penetration testing and red team services is the primary category of both on CISO Tribune.
Where are Bishop Fox and Vonahi Security headquartered?
Bishop Fox is headquartered in Tempe, United States. Vonahi Security is headquartered in Atlanta, GA, USA.
When were Bishop Fox and Vonahi Security founded?
Bishop Fox was founded in 2005.
Who owns Bishop Fox and Vonahi Security?
Vonahi Security is owned by Kaseya.
Who are Bishop Fox and Vonahi Security sold to?
From its own pages, Bishop Fox sells mainly to organizations that want offensive security testing of their applications, cloud, networks, devices, and AI systems.
What have Bishop Fox and Vonahi Security announced recently?
February 10, 2026: Bishop Fox announced an updated application penetration testing service that combines its expert testing teams with its proprietary AI engine, Cosmos AI.

About Bishop Fox

Bishop Fox sells offensive security services, including penetration testing and continuous security testing. Bishop Fox says it has 20 years of offensive security experience and thousands of customer engagements. Bishop Fox was founded by ethical hackers. Bishop Fox says it is behind offensive security tools including Sliver and CloudFox. Bishop Fox applies agentic AI to its offensive testing, and Bishop Fox assesses models and architectures as part of securing AI and LLM initiatives.

Bishop Fox penetration testing spans applications, networks, products, cloud, and AI systems. Bishop Fox offers assessments of AI systems tailored to the customer's use case, priorities, and development lifecycle. Bishop Fox's application offering includes web and mobile app penetration testing, AI-powered portfolio assessments, and secure code review. Application testing covers web, thick-client, e-commerce, single page applications, and APIs. Bishop Fox runs in-depth manual and dynamic analyses of Android and iOS devices and apps, guided by OWASP testing methodologies. Bishop Fox AI-Powered Application Penetration Testing delivers validated, expert-reviewed findings across an entire portfolio. Bishop Fox application testers are fluent in programming languages such as Python, C, C#, C++, Java, JavaScript, GO, Swift, PHP, Rust, and Objective C.[9]

Bishop Fox cloud testing goes beyond configuration reviews to identify critical and exploitable paths in AWS, GCP, Azure, and Kubernetes environments. Bishop Fox network testing simulates real-world attack scenarios to uncover perimeter weaknesses and identify how an attacker could gain access to internal networks. Bishop Fox says its External Penetration Testing emulates targeted adversaries and results in discovery of defensive gaps, including likelihood of exploitation and business impact. Bishop Fox hardware and software testing covers IoT, consumer, commercial, and industrial devices. Hardware testing inspects devices down to electronic components including PCBs, chips, storage, debugging interfaces, and bus protocols. Bishop Fox experts test strategic partners and 3rd party vendors.[11]

Bishop Fox provides continuous security testing that it describes as integral to a successful Continuous Threat Exposure Management (CTEM) program. Bishop Fox managed services identify, prioritize, and help customers remediate business-impacting exposures. Bishop Fox Attack Surface Discovery continuously finds, validates, and attributes perimeter assets. Bishop Fox Emerging Threat Testing delivers a per-environment verdict. Bishop Fox says its red team work lets customers face the tactics real adversaries use and see how their team responds. Bishop Fox customizes its reporting, weekly status reports, and post-engagement reviews to the unique needs of the customer's organization.[12][13]

Cosmos is Bishop Fox's cloud-native technology platform and the foundation of its offensive security services. Cosmos is built on stateless microservices that auto scale to enterprise volumes, continuously discovers external assets, and routes high-confidence findings into an expert human validation pipeline. Cosmos builds and verifies a living inventory of an organization's external attack surface. Cosmos runs daily automations that validate reachability and protocol behavior so customers see only verified, visible assets. Cosmos captures evidence in the form of technology fingerprints, screenshots, and service metadata. Cosmos uses tenant- and organization-level cloud connectors. Cosmos integrates with customer workflows through Jira and ServiceNow, syncing validated findings into existing ticketing systems. Validated outputs are surfaced through the Bishop Fox Portal, which provides an asset inventory, confirmed findings, indicators of exposure, and a triage workflow integrated with customer ticketing and collaboration systems. Bishop Fox operates and manages Cosmos as part of its services, and customers do not deploy or maintain the platform themselves.[7]

Bishop Fox built AIMap, an open-source tool that discovers, scores, and tests exposed AI endpoints. Sliver is a cross-platform general purpose implant framework. Sliver supports asymmetrically encrypted C2 over DNS, HTTP, HTTPS, and Mutual TLS.

Bishop Fox says it helps customers who are looking to safely deploy AI, release a new app or service, or validate corporate governance. A healthcare technology company moving to SaaS needed to validate its multi-tenant cloud platform, secure connected device provisioning, and maintain visibility across a growing attack surface. An energy provider faces constant threats from nation-state actors targeting critical infrastructure. Equifax runs year-round perimeter testing to safeguard high-value data. Zoom used continuous attack surface monitoring to protect its expanding platform. Apollo selected Bishop Fox to perform a Google Security Assessment of its application, external perimeter, and Google Cloud Platform (GCP) environment. John Deere relied on in-depth product security reviews and ongoing protection through a managed offensive security platform. Ventrilo.ai partnered with Bishop Fox for application penetration testing and AI security assessments. A financial services organization tested Bishop Fox's Cosmos AI platform against a realistic application.[7][9][13]

Bishop Fox on the record

Sources

Bishop Fox full record

  1. [1]bishopfox.comBishop Fox · bishopfox.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]ContactBishop Fox · bishopfox.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]Bishop Fox | The leading authority in offensive security… | Bishop FoxBishop Fox · undated page, accessed October 23, 2026 · Tier A
  4. [4]Offensive Security: Penetration Testing Services | Bishop FoxBishop Fox · undated page, accessed October 23, 2026 · Tier A
  5. [5]Continuous Security Testing Services | Bishop FoxBishop Fox · undated page, accessed October 23, 2026 · Tier A
  6. [6]Red Team Services | Bishop FoxBishop Fox · undated page, accessed October 23, 2026 · Tier A
  7. [7]Cosmos Technology Platform | Bishop FoxBishop Fox · undated page, accessed October 23, 2026 · Tier A
  8. [8]Offensive Security Services | Bishop FoxBishop Fox · undated page, accessed November 5, 2026 · Tier A
  9. [9]Application Penetration Testing Services | Bishop FoxBishop Fox · undated page, accessed November 5, 2026 · Tier A
  10. [10]External Penetration Testing for Network Security | Bishop FoxBishop Fox · undated page, accessed November 5, 2026 · Tier A
  11. [11]Hardware Security Assessments and Product Security… | Bishop FoxBishop Fox · undated page, accessed November 5, 2026 · Tier A
  12. [12]Bishop Fox | Tactics of Deception: Protecting Trust and PurposeBishop Fox · undated page, accessed November 5, 2026 · Tier A
  13. [13]Explore Customers of Our Offensive Security Solutions | Bishop FoxBishop Fox · undated page, accessed November 5, 2026 · Tier A
  14. [14]Bishop Fox Redefines Offensive Security at Scale with AI-Augmented Penetration TestingBishop Fox · published February 10, 2026 · Tier A

Vonahi Security full record

  1. [1]Crest press releaseVonahi Security · vonahi.io · published June 12, 2024 · Tier A
  2. [2]vonahi.iovonahi.io · undated page, accessed November 12, 2026 · Tier A
  3. [3]ServicesVonahi Security · undated page, accessed November 12, 2026 · Tier A
  4. [4]CREST Penetration Testing 2025 | Vonahi SecurityVonahi Security · undated page, accessed November 12, 2026 · Tier A
  5. [5]Network Penetration Testing Platform | vPenTestVonahi Security · undated page, accessed November 12, 2026 · Tier A
  6. [6]Meet Our Team | Vonahi SecurityVonahi Security · undated page, accessed November 12, 2026 · Tier A
  7. [7]Automated Network Penetration Testing | Vonahi SecurityVonahi Security · undated page, accessed November 12, 2026 · Tier A
  8. [8]Get a vPenTest Pricing Quote | Vonahi SecurityVonahi Security · undated page, accessed November 12, 2026 · Tier A
  9. [9]InsurwaveVonahi Security · undated page, accessed November 12, 2026 · Tier A
  10. [10]Stratus ip Case Study | vPenTestVonahi Security · undated page, accessed November 12, 2026 · Tier A
  11. [11]NetcotechVonahi Security · undated page, accessed November 12, 2026 · Tier A
  12. [12]Case StudiesVonahi Security · undated page, accessed November 12, 2026 · Tier A

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