Binary Defense
Binary Defense provides managed detection and response (MDR) and SOC-as-a-service through a vendor-agnostic Managed Open XDR model, founded by TrustedSec's Dave Kennedy.
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Binary Defense is a managed detection and response (MDR) provider offering 24/7 SOC-as-a-service to organizations that lack the resources to staff an internal security operations center. Its Managed Open XDR model pulls detections from a customer’s existing endpoint, network, and cloud telemetry rather than locking customers into a single proprietary sensor stack, letting the company layer analyst-driven monitoring and response on top of tools an organization has already deployed.
Founded in 2014 in Stow, Ohio by Dave Kennedy, a well-known figure in the offensive security community as the founder of TrustedSec and creator of the Social-Engineer Toolkit, Binary Defense operated for roughly eight years before taking any outside investment. In November 2022 the company raised $36M in growth funding led by Invictus Growth Partners, its first disclosed funding round, earmarked for sales/marketing expansion, partnerships, machine-learning investment, and continued development of its Managed Open XDR offering.
Binary Defense competes in a crowded MDR field against providers like Arctic Wolf, Expel, and Red Canary. Its differentiation is the combination of an "open" telemetry-agnostic architecture with founder credibility rooted in offensive security research, plus the fact that it grew to meaningful scale on its own revenue before raising outside capital — a real signal of product-market fit, even though independent, third-party-validated detection performance data (of the kind found in MITRE ATT&CK Evaluations) is not publicly available for the company.
Innovation Matrix Assessment
The 2022 funding round was explicitly earmarked for machine-learning investment and continued development of the Managed Open XDR offering, indicating active platform investment beyond a pure services headcount expansion.
Binary Defense operated and grew for roughly eight years on its own revenue before taking any outside investment, and its Open XDR model is explicitly built to ingest a customer's existing endpoint/network/cloud tooling rather than requiring a rip-and-replace, both real operational signals.
A $36M growth round led by Invictus Growth Partners in November 2022, the company's first disclosed outside funding after eight years of bootstrapped growth, is a strong and independently reported momentum signal.
A vendor-agnostic 'Open XDR' architecture that layers onto a customer's existing tools is a reasonable differentiator, but MDR/SOC-as-a-service is now a mature, heavily competed category rather than a new one.
Founder Dave Kennedy's standing in the offensive-security community (TrustedSec, the Social-Engineer Toolkit) lends real credibility, but no independent, third-party-validated detection or response performance data (such as a MITRE ATT&CK Evaluation) for Binary Defense specifically was found in public sources.
MDR and SOC-as-a-service directly address the well-documented shortage of security operations staffing that most organizations face, keeping this category highly relevant to current buyer needs.
Why CISOs Should Care
Gives organizations that cannot staff a 24/7 internal SOC a vendor-agnostic MDR option that layers onto tools they already own, from a company with credible offensive-security roots and eight years of pre-funding operating history.
What Makes It Different
An explicitly vendor-agnostic 'Open XDR' architecture combined with founder credibility from the offensive-security community, and a track record of profitable-enough operation to grow eight years before taking outside capital.
The Matrix Verdict
63/100 — INCREMENTAL INNOVATOR
A credible, well-funded MDR provider with real pre-investment operating history and a differentiated open-architecture pitch; a solid shortlist candidate in a crowded MDR field, though independent efficacy validation is not publicly available.
Editorial Note: Claims vs. Verified Findings
Independently verified: the $36M Invictus Growth Partners round (November 2022), the company's founding year, and Dave Kennedy's founder background, all corroborated across SecurityWeek, BusinessWire, and MSSP Alert. Vendor-sourced and unverified: specific detection-efficacy and 'most trusted MDR platform' marketing language from Binary Defense's own materials.
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