XBOW

@Xbow • 15,823 subscribers

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

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Anthropic’s Mythos raised the bar for AI vuln detection but kept it invite-only. GPT-5.5 is OpenAI’s answer, and it’s open to all. We had early access. Ran the benchmarks. Blackbox GPT-5.5 already beats whitebox GPT-5. Best pentesting model we’ve tested. Read our analysis:

Anthropic’s Mythos raised the bar for AI vuln detection but kept it invite-only. GPT-5.5 is OpenAI’s answer, and it’s open to all. We had early access. Ran the benchmarks. Blackbox GPT-5.5 already beats whitebox GPT-5. Best pentesting model we’ve tested. Read our analysis:

210,071 просмотров

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A 250k calculator. Full blog post awaiting embargo 😎

A 250k calculator. Full blog post awaiting embargo 😎

366,478 просмотров • 1 месяц назад

For the first time in history, the #1 hacker in the US is an AI. (1/8)

For the first time in history, the #1 hacker in the US is an AI. (1/8)

287,284 просмотров • 1 год назад

For the past 2 months, XBOW has been testing Mythos Preview under embargo as part of a select early-access group. Today, we can finally share what we found. The headline: Mythos Preview is a major advance. It is substantially better than prior models at finding vulnerability candidates, especially when source code is available. But it’s not perfect. We surfaced issues with exploit validation, judgment, and efficiency. Our full write-up covers where Mythos Preview shines, where it still needs support, and what we think this means for the future of offensive security:

For the past 2 months, XBOW has been testing Mythos Preview under embargo as part of a select early-access group. Today, we can finally share what we found. The headline: Mythos Preview is a major advance. It is substantially better than prior models at finding vulnerability candidates, especially when source code is available. But it’s not perfect. We surfaced issues with exploit validation, judgment, and efficiency. Our full write-up covers where Mythos Preview shines, where it still needs support, and what we think this means for the future of offensive security:

106,273 просмотров • 5 месяцев назад

XBOW is the world’s first fully automated web pentester. It previously scored an unprecedented 75% on renowned web pentesting benchmarks from PentesterLab and PortSwigger. So we decided to give it a harder challenge: competing against humans.

XBOW is the world’s first fully automated web pentester. It previously scored an unprecedented 75% on renowned web pentesting benchmarks from PentesterLab and PortSwigger. So we decided to give it a harder challenge: competing against humans.

261,188 просмотров • 2 лет назад

XBOW + Microsoft: continuous pentesting, now inside Microsoft Security. 🚀 Discover assets + launch pentests in Security Copilot 🔍 Exploit-validated findings → Sentinel 📐 Copilot correlates attack paths with live telemetry No more periodic tests. No more disconnected reports. Just a continuous loop: test → validate → detect → remediate → retest See how to deploy: Booth #1843 RSAC

XBOW + Microsoft: continuous pentesting, now inside Microsoft Security. 🚀 Discover assets + launch pentests in Security Copilot 🔍 Exploit-validated findings → Sentinel 📐 Copilot correlates attack paths with live telemetry No more periodic tests. No more disconnected reports. Just a continuous loop: test → validate → detect → remediate → retest See how to deploy: Booth #1843 RSAC

83,307 просмотров • 7 месяцев назад

The top hacker in the US is not a human, but a machine. XBOW founder and CEO Oege de Moor and Apoorv Agrawal of Brad Gerstner joined Bloomberg TV this morning to talk about the milestone.

The top hacker in the US is not a human, but a machine. XBOW founder and CEO Oege de Moor and Apoorv Agrawal of Brad Gerstner joined Bloomberg TV this morning to talk about the milestone.

58,665 просмотров • 1 год назад

Offense at scale starts with an API. Today, we’re launching the XBOW Public API in Public Preview. Autonomous pentesting gave teams expert-level assessments in hours. But turning that capability into infrastructure required one more piece: programmatic access. Teams can now trigger and manage pentests across their entire portfolio; start, pause, resume, and monitor assessments at machine speed. Findings, assets, reports, and webhooks are all accessible through a production-ready API built to integrate directly into existing workflows. The result: run one pentest or one hundred with the same depth, autonomy, and exploit validation. No scheduling. No bottlenecks. No choosing which applications get coverage. Public Preview is live as of February 1, 2026. More here:

Offense at scale starts with an API. Today, we’re launching the XBOW Public API in Public Preview. Autonomous pentesting gave teams expert-level assessments in hours. But turning that capability into infrastructure required one more piece: programmatic access. Teams can now trigger and manage pentests across their entire portfolio; start, pause, resume, and monitor assessments at machine speed. Findings, assets, reports, and webhooks are all accessible through a production-ready API built to integrate directly into existing workflows. The result: run one pentest or one hundred with the same depth, autonomy, and exploit validation. No scheduling. No bottlenecks. No choosing which applications get coverage. Public Preview is live as of February 1, 2026. More here:

12,257 просмотров • 8 месяцев назад

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