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Theori BLOG
Empowering Innovation with Security
Explore expert insights into offensive security and threat intelligence.
Xint
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
AI for Security
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
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 06, 2026
AI for Security
Announcing Xint Code
Real Vulnerabilities. Actionable Results.
Dec 15, 2025
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
AIxCC
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
AI for Security
AIxCC
Inside the brain of a hacking robot: Exploring traces | AI Cyber Challenge
Agent trajectory walkthroughs of a fully autonomous hacking system
Aug 08, 2025
AI for Security
AIxCC
Importance of Continuous Security: Lessons from the Bybit Case
In this article, we briefly look at the circumstances of the Bybit incident and discuss what countermeasures could have been implemented. Then, we discuss the limitations of current solutions and how Xint resolves them.
Mar 27, 2025
AI for Security
The True Cost of Siloed Security Tools
Security silos occur when different security tools, teams, or systems operate in isolation, unable to effectively share data or communicate.
Dec 20, 2024
AI for Security
Side Effects: When Continuous Development Introduces Security Threats
Dive into five significant security risks that emerged as unintended consequences of new feature development.
Nov 04, 2024
Web2 Security
Top 5 Features Your ASM Solution Must Have
So you know what ASM is and why you need it — but which features are crucial? Here’s the run down.
Oct 24, 2024
AI for Security
Offensive Security with Large Language Models (2)
How LLMs are changing the game for static analysis — especially when source code is available.
Sep 30, 2024
AI for Security
Offensive Security with Large Language Models (1)
Applications of larage language models in offensive security
Sep 27, 2024
AI for Security
Winning the AIxCC Qualification Round
Theori’s Cyber Reasoning System (CRS) “Robo Duck” not only cleared the bar to get us $2M and a spot at the AIxCC finals in 2025, it also got the first place among all the submissions in the highly competitive event.
Sep 23, 2024
AI for Security
Top Penetration Testing Solutions for IT Security: 2024 Guide
The top 7penetration testing tools of 2024 for hackers and for businesses.
Sep 11, 2024
AI for Security
Offensive Security vs. Defensive Security: Navigating the Two Pillars of Cybersecurity
Explore how offensive and defensive security strategies work together to protect against cyber threats.
Aug 30, 2024
Web2 Security
