Your MTTD Looks Great. Your Post-Alert Gap Doesn't

📅 13 April 2026 at 11:41 UTC📰 The Hacker NewsView original source ↗

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 Whitmore warned 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

🤖 AI BriefingAuto-generated threat analysis

🔍Threat Overview

A recent incident involving Anthropic's Mythos Preview model demonstrated the potential for autonomous systems to exploit zero-day vulnerabilities in major operating systems and browsers, highlighting a growing risk of widespread exploitation in the near future. The average eCrime breakout time is estimated to be around 29 minutes, underscoring the need for swift defensive measures.

⚙️Technical Details

Affected Systems

WindowsmacOSLinuxGoogle ChromeMozilla Firefox

Attack Vectors

Zero-day vulnerability exploitation

💥Impact Assessment

Severity: H

Who Is at Risk

Individual users and organizations with affected systemsCritical infrastructure and government agencies

🛡️Recommended Actions

1Implement robust security updates and patches for affected systems immediately

2Conduct regular vulnerability assessments and penetration testing

3Develop and execute incident response plans to minimize downtime and data loss

📦Affected Products

Operating SystemsWeb Browsers

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