Joe DeMesy, Shubham Shah, and Matthew Bryant

Introducing Cosmos

Named Leader of the GigaOm Radar for the third year in a row!

Meet Cosmos: The continuous offensive security solution designed to provide proactive defense.

Get Cosmos Attack Surface Management (CASM) for unmatched visibility into your changing external attack surface with continuous discovery and mapping.

Cosmos Application Penetration Testing

Cosmos Application Penetration Testing (CAPT) strengthens the security of business-critical applications with in-depth assessments.

Cosmos External Penetration Testing

Cosmos External Penetration Testing (CEPT) builds on Cosmos Attack Surface Management to provide the highest level of attack surface protection with post-exploitation activities.

The Best Defense is a Great Offense

See Why We're the Leaders in Offensive Security

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Application Security

Ensure your applications are secure and improve your DevSecOps practices.

Red Team & Readiness

Get a holistic view of your ability to defend against a real-world attack.

IoT & Product Security

Validate interconnected devices and products are secure against attackers.

Cloud Security

Assess cloud security posture with expert testing and analysis of your environment.

Network Security

Get insight into how skilled adversaries could establish network access and put sensitive systems and data at risk.

AI/ML Security Assessment

Fortify the security of rapidly evolving AI/ML applications, models, and supporting infrastructures.

Compliance & Regulations

Satisfy governance, risk, and compliance programs with our testing services.

Assessments for Our Partners

We're proud to work with Google, Facebook, and Amazon to increase security in their partner ecosystems.

A Ponemon Institute Report

The State of Offensive Security

Get the blueprint. Insights into how mature security organizations invest in offensive strategies.

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Resource Center

Discover new offensive security resources, ranging from reports and eBooks to slide decks from speaking gigs.

Bulletins & Advisories

Explore the latest security bulletins and advisories released by our team.

Exploit for Fortinet CVE-2022-42475
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Blog

Dive into our blog for insights and perspectives from our offensive security experts.

Bishop Fox Labs

Learn more about our research and some of the most popular open-source security tools. Check them out here!

Why Partner with Us?

Join Forces with the Leaders in Offensive Security

Independent Assessment by TAG Cyber

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Partner Program Overview

Learn about our partner programs and see how we can work together to provide best-in-class security offerings.

Find a Partner

Check out our awesome ecosystem of trusted partners to find the right solution for your needs.

Become a Partner

Explore partnership opportunities and apply to join forces with Bishop Fox.

Assessments for Our Partners

We're proud to work with Google, Facebook, and Amazon to increase the security of their partner ecosystems.

We're Hiring!

Want to Work with the Best Minds in Offensive Security?

Be part of an elite team and work on projects that have a real impact.

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Company Overview

Get to know us. Learn about our roots and see why we're on a mission to improve security for all.

Events

Join us at an upcoming event or peruse our speaking engagements, past and present.

Newsroom

Read the latest articles, announcements, and press releases from Bishop Fox.

Want to get in touch? We're ready to connect.

Career Opportunities

We're hiring! Explore our open positions and discover why the Fox Den is a great place to build your career.

Intern & Educational Programs

Starting your offensive security journey? Check out our internships and educational programs.

Bishop Fox Mexico

¡Celebramos! Bishop Fox is now in Mexico. Learn more about our expansion.

Meet the Author

Joe DeMesy, Shubham Shah, and Matthew Bryant

Joe DeMesy, Shubham Shah, and Matthew Bryant collaborated on security research into popular messaging platforms, most notably Apple iMessage, in 2016.

Posts from Joe DeMesy, Shubham Shah, and Matthew Bryant

Apr 08, 2016

OS X Messages (iMessage): XSS & File Disclosure

Apr 08, 2016

If You Can't Break Crypto, Break the Client: Recovery of Plaintext iMessage Data

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