Anthropic is expanding Project Glasswing, its cybersecurity initiative built around the Claude Mythos Preview model, by adding about 150 organizations following several weeks of work with its initial group of partners, security firms, open-source maintainers, and government agencies. Organizations joining the program must meet security requirements before gaining access, Anthropic noted. The expansion brings the…
Tag: Mythos
AI, Global Security News
Claude Mythos AI Identified 10,000+ Software Vulnerabilities in One Month
Anthropic says its Claude Mythos AI identified more than 10,000 software vulnerabilities in one month, including critical flaws in open-source code.
Global Security News, Risk Management
Anthropic’s restricted Claude Mythos model may be coming to Claude Code
Anthropic appears to be preparing for the public rollout of the Mythos model, which was announced in April as a restricted model that poses major security risks to private and public software. […]
AI, APAC, Apps, Exploits, Global Security News, Network Security, Risk Management
The AI that cracked Apple Silicon is only the beginning
A security research team just used Claude Mythos to identify the first known exploit in Apple’s M5 chip. They needed physical access to the device to use it, the vulnerability has since been patched, and I don’t think it should be seen as a huge threat. But it is a stark warning that in this AI…
AI, Apps, Cybersecurity, Exploits, Global Security News, Government & Policy, Network Security
Researchers say AI just broke every benchmark for autonomous cyber capability
Two of the most advanced artificial intelligence models — Anthropic’s Claude Mythos Preview and OpenAI’s GPT-5.5 — have significantly surpassed the already-accelerating pace at which AI systems are completing autonomous cybersecurity tasks, according to separate findings published Wednesday by the United Kingdom’s AI Security Institute (AISI) and Palo Alto Networks. The AISI, which conducts pre-deployment…
AI, Cybersecurity, Global Security News, Government & Policy, Politics, Risk Management
Closed briefing sets stage for House hearing on Anthropic’s Mythos and cyber risks
The House Homeland Security Committee is digging into Anthropic’s AI model Mythos in a series of briefings and hearings, as questions proliferate on whether and how the federal government will make use of the technology touted for its ability to autonomously uncover cyber vulnerabilities. Wednesday brought a closed-door briefing for the House Homeland Security Committee…
AI, Apps, Cybersecurity, Data Breaches, Endpoint, Exploits, Global Security News, malware, Network Security, Risk Management, Venture
What works against Mythos today is what worked against ransomware 5 years ago, and malware 10-15 years ago
Mythos completely changed the game, except, in most ways, it didn’t. It isn’t creating entirely new security problems, it simply makes existing problems much easier to exploit at scale. Yes, AI will increase breaches by making attacks faster and cheaper, but the way companies defend themselves hasn’t fundamentally changed. The organizations best prepared for AI-driven…
AI, Cybersecurity, Europe, Global Security News, Government & Policy, malware, Network Security, Risk Management
OpenAI introduces Daybreak cyber platform, takes on Anthropic Mythos
OpenAI has unveiled Daybreak, its answer to Anthropic’s Claude Mythos, amid a growing market for frontier AI-powered cyber defense platforms. The initiative combines OpenAI’s large language models, Codex’s agentic capabilities, and integrations with the broader enterprise security ecosystem. The company said Daybreak is focused on accelerating cyber defense operations and enabling organizations to secure software…
AI, Cybersecurity, Europe, Global Security News, Government & Policy, malware, Network Security, Risk Management
OpenAI introduces Daybreak cyber platform, takes on Anthropic Mythos
OpenAI has unveiled Daybreak, its answer to Anthropic’s Claude Mythos, amid a growing market for frontier AI-powered cyber defense platforms. The initiative combines OpenAI’s large language models, Codex’s agentic capabilities, and integrations with the broader enterprise security ecosystem. The company said Daybreak is focused on accelerating cyber defense operations and enabling organizations to secure software…
AI, Global Security News
What Mozilla learned running an AI security bug hunting pipeline on Firefox
Over the past several months, Mozilla ran an agentic harness powered by Claude Mythos Preview across Firefox’s source code, identifying 271 security bugs that were fixed in Firefox 150, with additional fixes shipped in versions 149.0.2 and 150.0.1. Over 100 people contributed code to get those patches out. The bugs spanned a wide range of…
AI, Compliance, Cybersecurity, Endpoint, Exploits, Global Security News, Risk Management
Mythos AI: What Security Leaders Should Do Next
The recent discussion around Anthropic’s Claude Mythos Preview and Project Glasswing has caught the attention of the cybersecurity industry for good reason. Mythos is not just another AI announcement. It is being positioned as a frontier model with advanced cybersecurity capability, particularly around finding and exploiting software vulnerabilities. Anthropic has stated that Project Glasswing is…
AI, Apps, Cloud Security, Cybersecurity, Global Security News, Network Security
Security posture improvement in the AI era
It’s only been a few weeks since Anthropic announced the Claude Mythos Preview model and launched Project Glasswing with AWS and other leading organizations. This has generated a lot of discussion about the future of cybersecurity and what the ever-increasing capabilities of foundation models mean to organizations. As AWS CISO Amy Herzog pointed out in…
AI, Cloud Security, Cybersecurity, Europe, Global Security News, Government & Policy, privacy, Risk Management
Bank regulator sounds warning over cybersecurity threat posed by AI models
Frontier AI models inspired by Anthropic’s Claude Mythos could arm attackers with advanced capabilities that the banking sector is ill equipped to cope with, Australia’s financial regulator, the Australian Prudential Regulation Authority (APRA), has warned. In a letter addressed to the country’s financial sector this week, the body lays out how the arrival of Claude…
AI, Compliance, Exploits, Global Security News
Everyone’s building AI agents. Almost nobody’s ready for what they do to identity.
Anthropic recently announced that it would not release Mythos, its most powerful AI model, to the public. The model discovered thousands of previously unknown software vulnerabilities — flaws that had sat undetected in major operating systems and web browsers for as long as nearly three decades. Anthropic said the model was too dangerous to deploy…
Cybersecurity, Global Security News
Parsing Agentic Offensive Security’s Existential Threat
Some fear frontier LLMs like Claude Mythos and Anthropic’s GPT-5.5 will lead to cybersecurity annihilation. Ari Herbert-Voss notes this could be an opportunity.
AI, Cybersecurity, Global Security News
Mythos Changed the Math on Vulnerability Discovery. Most Teams Aren’t Ready for the Remediation Side
Anthropic’s Claude Mythos Preview has dominated security discussions since its April 7 announcement. Early reporting describes a powerful cybersecurity-focused AI system capable of identifying vulnerabilities at scale and raising serious questions about how quickly organizations can validate, prioritize, and remediate what it finds. The debate that followed has mostly focused on the right
AI, APAC, Cloud Security, Cybersecurity, Europe, Exploits, Global Security News, Risk Management
The Mythos Discovery: What It Means for Vulnerability Disclosure
The Mythos Discovery: What It Means for Vulnerability Disclosure AI just broke vulnerability disclosure at scale. Earlier this month, Anthropic’s Claude Mythos Preview AI model discovered 27-year-old bugs that survived decades of human review. Now the industry’s top security leaders are calling it a watershed moment. Here’s what software vendors need to know. What Happened…
AI, Cloud Security, Global Security News, Risk Management
Google gets agent-ready for the Mythos age
In response to Anthropic Mythos, instead of launching another LLM, Google unveiled a broad push toward agentic, AI-driven defense at Google Cloud Next ‘26 to help SOC analysts as they scramble to keep up with the influx of CVEs Mythos threatens. As Mythos promises more vulnerabilities, and reports of unauthorized access despite its limited preview…
AI, APAC, Cybersecurity, Exploits, Global Security News, Risk Management
Microsoft taps Anthropic’s Mythos to strengthen secure software development
Microsoft plans to integrate Anthropic’s Mythos AI model into its Security Development Lifecycle, a move that suggests advanced generative AI is beginning to play a direct role in how major software vendors identify vulnerabilities and harden code against attack. The company said it will use Mythos Preview, along with other advanced models, as part of…
AI, Cybersecurity, Exploits, Global Security News, privacy
Claude Mythos signals a new era in AI-driven security, finding 271 flaws in Firefox
The Claude Mythos Preview appears to be living up to the hype, at least from a cybersecurity standpoint. The model, which Anthropic rolled out to a small group of users, including Firefox developer Mozilla, earlier this month, has discovered 271 vulnerabilities in version 148 of the browser. All have been fixed in this week’s release…
AI, Cybersecurity, Exploits, Global Security News, privacy
Claude Mythos signals a new era in AI-driven security, finding 271 flaws in Firefox
The Claude Mythos Preview appears to be living up to the hype, at least from a cybersecurity standpoint. The model, which Anthropic rolled out to a small group of users, including Firefox developer Mozilla, earlier this month, has discovered 271 vulnerabilities in version 148 of the browser. All have been fixed in this week’s release…
AI, Cybersecurity, Exploits, Global Security News, privacy
Claude Mythos signals a new era in AI-driven security, finding 271 flaws in Firefox
The Claude Mythos Preview appears to be living up to the hype, at least from a cybersecurity standpoint. The model, which Anthropic rolled out to a small group of users, including Firefox developer Mozilla, earlier this month, has discovered 271 vulnerabilities in version 148 of the browser. All have been fixed in this week’s release…
AI, Data Breaches, Global Security News
Discord-Linked Group Accessed Anthropic’s Claude Mythos AI in Vendor Breach
Anthropic is investigating a vendor breach after a Discord-linked group accessed its Claude Mythos AI model, with no evidence of impact on core systems.
AI, Cybersecurity, Global Security News
Claude Mythos finds 271 Firefox flaws, Mozilla believes zero-days are numbered
The Mozilla Foundation tested Claude Mythos, an Anthropic AI model that has stirred debate in the cybersecurity community. Before granting access to Mythos, Mozilla scanned Firefox using Opus 4.6, which led to fixes for 22 security-sensitive bugs in Firefox 148. For instance, Mythos identified 271 vulnerabilities in Firefox 150. Firefox CTO Bobby Holley said other…
AI, Apps, Cybersecurity, Exploits, Global Security News, Government & Policy, Network Security
Anthropic bets on EPSS for the coming bug surge
Anthropic’s Mythos has intensified a problem that vulnerability management programs were already struggling to contain: too many vulnerabilities and not enough clarity about which ones matter. What changes with Mythos — and the AI-based class of vulnerability discovery systems it represents — is the speed at which software flaws can be found and exploited. That…
AI, Cybersecurity, Exploits, Funding, Global Security News, Government & Policy, Network Security, Risk Management
The US NSA is using Anthropic’s Claude Mythos despite supply chain risk
Axios reports the National Security Agency uses Anthropic Mythos model despite Department of Defense concerns, blurring AI risk vs defense lines. The reported use of Anthropic’s Mythos model by the U.S. National Security Agency is a reminder that the line between AI as a defensive tool and AI as a security risk is getting harder…
AI, Cybersecurity, Exploits, Global Security News
Mythos can find the vulnerability. It can’t tell you what to do about it.
Mythos matters. It is a significant step forward in AI-assisted vulnerability discovery. But it does not mean cybersecurity changed overnight, nor does it mean enterprises are suddenly facing fully automated exploitation at internet scale tomorrow. It does mean the offensive side of AI is continuing to improve. The defensive side needs to catch up now.…
AI, Cybersecurity, Exploits, Global Security News
Claude Mythos – ist der Hype gerechtfertigt?
Claude Mythos wird derzeit von ausgesuchten Organisationen getestet – in erster Linie großen Tech-Konzernen aus den USA. Anthropic | Screenshot Der Hype um Anthropics Security-Modell Mythos bekommt erste Risse: Während KI-Konkurrent OpenAI plant, mit einem eigenen Cybersecurity-fokussierten KI-Modell „entgegenzuwirken“, stellen die Sicherheitsexperten von VulnCheck in einer aktuellen Untersuchung die praktischen Auswirkungen von Claude Mythos, respektive…
AI, Global Security News
Anthropic CEO Lands White House Meeting as Feud Thaws
The Friday meeting comes ahead of the release of Mythos, Anthropic’s latest AI model.
AI, Cybersecurity, Europe, Exploits, Global Security News, Government & Policy, Risk Management
White House moves to give federal agencies access to Anthropic’s Claude Mythos
The US government is preparing to authorize a version of Anthropic’s Claude Mythos model for use by major US federal agencies, amid concerns that the AI model could rapidly spot cybersecurity vulnerabilities and offer the ability to exploit them. Federal Chief Information Officer Gregory Barbaccia at the White House Office of Management and Budget (OMB)…
AI, Cybersecurity, Exploits, Global Security News, Politics
Behind the Mythos hype, Glasswing has just one confirmed CVE
Efforts to cut through the buzz surrounding Anthropic’s Mythos are emerging. As OpenAI moves to counter the hype around it with its own cybersecurity model, VulnCheck is reporting that the model’s publicly attributable output amounts to just one confirmed CVE. While Project Glasswing, the controlled access program for Mythos, promises a powerful offensive capability, gated…
AI, Cybersecurity, Global Security News, Government & Policy, Network Security
Testing reveals Claude Mythos’s offensive capabilities and limits
Could Claude Mythos Preview, Anthropic’s latest large language model, be leveraged for fully automated cyber attacks? The UK government’s AI Security Institute (AISI) tested its capability to successfully engage in capture-the-flag (CTF) challenges and multi-step attack scenarios, and found that that while its cybersecurity capabilities exceed those of previously available models, it can’t reliably execute…
AI, Global Security News
AI Security Institute Advocates Security Best Practices After Mythos Test
The AISI has issued its judgement on Anthropic’s Mythos Preview model
AI, Cloud Security, Global Security News
CSA: CISOs Should Prepare for Post-Mythos Exploit Storm
Security experts warn of an “AI vulnerability storm” triggered by the introduction of Anthropic’s Claude Mythos in a new paper from the Cloud Security Alliance (CSA).
Exploits, Global Security News, Network Security
Your MTTD Looks Great. Your Post-Alert Gap Doesn’t
Anthropic restricted its Mythos Preview model last week after it autonomously found and exploited zero-day vulnerabilities in every major operating system and browser. Palo Alto Networks’ Wendi Whitmorewarned that similar capabilities are weeks or months from proliferation. CrowdStrike’s 2026 Global Threat Report puts average eCrime breakout time at 29 minutes. Mandiant’s M-Trends 2026
AI, Global Security News
Anthropic Launches Project Glasswing to Use AI to Find and Fix Critical Software Vulnerabilities
Anthropic launches Project Glasswing, using its Claude Mythos Preview AI to autonomously identify and fix undiscovered vulnerabilities in critical software
AI, china, Cybersecurity, Exploits, Funding, Global Security News, Government & Policy, Network Security, Risk Management
Project Glasswing powered by Claude Mythos: defending software before hackers do
Anthropic unveiled Claude Mythos, a powerful AI for cybersecurity that could also be misused to enhance cyberattacks. Anthropic has unveiled Claude Mythos, a new AI model designed to strengthen cybersecurity through Project Glasswing, aiming to secure critical software before it can be abused. Interest in Mythos grew after a leak of nearly 3,000 internal files…
AI, Cybersecurity, Exploits, Global Security News, malware, Network Security, Risk Management
Leak reveals Anthropic’s ‘Mythos,’ a powerful AI model aimed at cybersecurity use cases
Anthropic didn’t intend to introduce Mythos this way. Details of what it calls its most capable AI model yet surfaced through a data leak in its content management system (CMS), revealing a LLM with sharply improved reasoning and coding skills. The data leak, which was the result of the company’s staffers inadvertently exposing material about…
AI, Cybersecurity, Exploits, Global Security News, malware, Network Security, Risk Management
Leak reveals Anthropic’s ‘Mythos,’ a powerful AI model aimed at cybersecurity use cases
Anthropic didn’t intend to introduce Mythos this way. Details of what it calls its most capable AI model yet surfaced through a data leak in its content management system (CMS), revealing a LLM with sharply improved reasoning and coding skills. The data leak, which was the result of the company’s staffers inadvertently exposing material about…