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The autonomous offensive security company redefining cyber defense for the AI era.

Seattle, Washington, USA
Joined May 2007
Photo by XBOW (@Xbow)Photo by XBOW (@Xbow)Photo by XBOW (@Xbow)Photo by XBOW (@Xbow)Photo by XBOW (@Xbow)Photo by XBOW (@Xbow)Photo by XBOW (@Xbow)Photo by XBOW (@Xbow)Photo by XBOW (@Xbow)Photo by XBOW (@Xbow)
Pinned Tweet
How we chained three vulnerabilities into a full Chrome exploit in just 6 days—claiming Google’s first $250,000 full-chain reward of 2026 for an attack affecting an estimated 1 billion users. 🧵
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A thread on how XBOW identified an unauthenticated, Critical-severity Remote Code Execution vulnerability in a public web application belonging to the U.S. Election Assistance Commission (@EACgov), the independent, bipartisan federal commission that focuses on election administration. 🧵
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5/ The finding demonstrates the value of security testing that persists through hypothesis, testing, retesting, and validation rather than giving up on an unpromising target or a misleading HTTP 500.
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For $50, anyone can rent a frontier AI model and start attacking a company. @Emerj talks with Sridhar Boddula, Head of Security Platform Eng. at @MassMutual, on #AIinBusiness. Sponsored by @XBOW zurl.co/ARbYO
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XBOW retweeted
The danger of HTTP2Shell is very real. The libbrotli 🥦vulnerability affects a wide range of software, patch now (CVE-2026-111497) We've achieved unauth RCE in Docker's official WordPress image abusing the well known /xmlrpc.php endpoint, we call it the pingback of hell :)
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XBOW retweeted
- por qué tantas vulnerabilidades esta semana? - pocos tuvieron acceso a mythos. en que es bueno y en que no? - las noticias de agents hackeando: es marketing o real? @fede_k de @Xbow te cuenta esto y mas en @radarlat, con @mgonto y @DAarambillet youtube.com/watch?v=qcUY5GnW…
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The 4th annual Cyber 60 list is here. This year’s list recognizes some of the fastest-growing venture-backed cybersecurity startups in the market, building to advance next-gen infrastructure, AI security, and how we approach threat detection. Congratulations to everyone who made the #Cyber60 list in partnership with @FortuneMagazine and sponsor @AWSstartups. Read our full CISO survey report, conducted with Wakefield Research, which polled 200 CISOs on enterprise AI and where they’ll invest next: lsvp.com/cyber60-2026-2027/
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Crashing the Crashpad talk is fascinating. I simply study further about the flow and details, this is quite fun and decent, making the object alive by uploading 512MB object slowly. Thank you so much. @Xbow @offensive_con
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Crashing the crashpad by Andres Luksenberg aka Polako
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With all the chaos around PHP2Shell, what can defenders do right now? A thread🧵
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2/ XBOW has rolled PHP2Shell validation into new assessments, safely testing whether the vulnerability can actually be exploited and providing a full trace of what was attempted. If something is exploitable, you get the proof.
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Replying to @oegerikus
@oegerikus keynote. It is informative and insightful. Thank you so much. @offensive_con @Xbow
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PHP2Shell (CVE-2026-109618 / CVE-2026-109619) has caused a state of panic across the internet. @Xbow has built the capability to identify vulnerable PHP versions and, where they are genuinely exploitable, demonstrate real code execution, proof, not theory. Our offensive research team continues to expand coverage across common PHP versions and configurations. But coverage is only part of the story: because no two targets are identical, our agents do not rely on a fixed list of known-good targets. When they encounter a build or configuration they have not seen before, they can analyze it, work out the target-specific parameters a working exploit requires, and adapt the technique to that instance, in effect building the exploit for that target rather than replaying a canned one. That means XBOW can validate real impact even on PHP instances that off-the-shelf tooling would simply mark "possibly vulnerable" and move on. For immediate support, get in touch with our team below.
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DataTribe / Virtu Cyber Innovation Conference 2026 - DMV Rising - DataTribe Challenge kicked off with "Autonomous Offense: AI, Agentic Pen Testing, and the Race to Patch Faster" #Keynote by Nico Waisman (XBOW) #CIC2026 @DataTribe @Xbow @virtruprivacy
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