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XINT.IO BLOG
Insights from the world's best offensive security researchers
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Hector Leano
FAQ: Is AI Application Security Testing Reliable If Results Vary Between Scans?
Non-deterministic LLM vuln discovery is actually a strength for Xint since it can go beyond fixed rules or patterns that are easily gamed by attackers.
May 28, 2026
Product
AI for Security
FAQ
AI won’t replace human pentesters and security teams. It will be a force multiplier
LLMs are changing the role of security researchers and engineers, but companies laying off human cyber experts just as AI coding generates more vulnerable code are in for a world of hurt.
May 26, 2026
AI for Security
Xint’s False Positive Rate: Methodology and Purpose
We don’t know the FP rate for the latest frontier models when it comes to AppSec. We share ours and how we arrived at it.
May 18, 2026
Product
AI for Security
Kernel Vulns Uncovered by Xint in MacOS, iOS and iPadOS
This is an overview of the two kernel-level vulnerabilities uncovered by Xint Code in MacOS, iOS and iPadOS which have been patched by Apple
May 12, 2026
Vulnerability Research
AI for Security
News
Why Zero Data Retention Should Be Non-Negotiable When Your Team Uses LLMs
Zero data retention (ZDR) policies for LLMs in AppSec are not the default, but here's why they belong at the top of your AI procurement checklist.
May 11, 2026
Product
What to Ask Every AI PenTest Vendor Before You Buy
These are the 8 questions that will tell you whether a vendor is selling a pen test alternative, a faster SAST tool, or a demo that doesn’t survive production
May 06, 2026
AI for Security
Product
Vulnerabilities vs. Weaknesses: Why the Distinction Matters
There's a difference between insecure code patterns and true vulnerabilities that hackers seek to exploit. Why does that matter?
May 05, 2026
Vulnerability Research
AI for Security
Product
Working With DARPA to Secure Open Source Infrastructure: CVE-2026-31789
The story behind CVE-2026-31789 demonstrates how DARPA and Xint are accelerating AI cyber defenses
May 04, 2026
Competitions
News
Vulnerability Research
Open Source Projects
Theori Deploys AI Hacker ‘Xint’ to Samsung Electronics, Leading the Charge in Large-Scale IT Asset Security Automation
Press Release for April 21, 2026
Apr 21, 2026
News
The Frontier Isn’t the Model: Why ‘Good Enough’ Reasoning + Scaffolding Is More Important
In this exclusive report, Xint researchers compare Mythos's publicly disclosed results versus what broadly available models can accomplish using advanced scaffolding
Apr 16, 2026
AI for Security
Vulnerability Research
AI Made Code Cheap. Trust Did Not.
While code is abundant, assurance is scarce. The winners won't be the teams that generate the most code, it’ll be the teams that can prove it's safe.
Apr 13, 2026
AI for Security
Finding and Patching a CPython 0day in Hours: CVE-2026-6100
A critical CPython CVE today took less than 45 minutes of human work to find, triage, and fix because of Xint Code
Apr 13, 2026
Vulnerability Research
Open Source Projects
How Xint’s Predictable Pricing Solves the Token Burn Problem for AI in AppSec
Linear increases in code are leading to exponential token burn increases. Xint's orchestration brings clear, predictable pricing.
Apr 09, 2026
AI for Security
What are business logic vulnerabilities, and why are they so hard to catch?
Even secure-looking code can hide dangerous flaws. Learn why business logic vulnerabilities are hard to detect and why most scanners miss them.
Mar 05, 2026
AI for Security
Announcing Xint Code
Real Vulnerabilities. Actionable Results.
Dec 15, 2025
AI for Security
Product
AI Cyber Challenge and Theori's RoboDuck
An introduction to DARPA's AI Cyber Challnge and Theori's third place cyber reasoning system
Aug 08, 2025
Competitions
AI for Security
Building Effective LLM Agents | AI Cyber Challenge
How we learned to build effective LLM agents for hacking at DARPA's AI Cyber Challenge (AIxCC)
Aug 08, 2025
AI for Security
Competitions