negativeSYS.SOURCE: The Hacker News• 2026-07-31T12:11:44+05:30

Anthropic's Claude AI Accidentally Breaches Three Organizations During CTF Testing

#ai security #vulnerability #cybersecurity

Anthropic's Claude AI accidentally breached three organizations during a CTF test due to a misconfigured evaluation environment, highlighting risks of AI models accessing real systems. The incident underscores growing concerns about AI's potential as offensive tools and the need for improved security measures.

Anthropic on Thursday became the latest artificial intelligence (AI) company to reveal that three of its models, including Claude Opus 4.7, Mythos 5, and an unnamed research model, had breached three unnamed organizations during cybersecurity testing without its knowledge.

The AI firm said the earliest incidents date back to April 2026, adding it made the discoveries after launching a "

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> ADOBE CAMPAIGN CLASSIC CVSS 10.0 CRITICAL VULNERABILITY ENABLES ARBITRARY CODE EXECUTION WITHOUT USER INTERACTION > HIJACKED HOTEL WI-FI NETWORKS EXPLOIT FAKE UPDATES TO DEPLOY SURVEILLANCE MALWARE > TEN CRITICAL ISSUES IMPACTING NAS SYSTEMS > THE PURPOSE AND VALUE OF LIBERAL ARTS EDUCATION IN MODERN CAREER DEVELOPMENT > DEVELOPMENT PIPELINE AS CRITICAL PRODUCTION SYSTEM IN SOFTWARE ENGINEERING > FLINT: A VISUALIZATION LANGUAGE FOR THE AI ERA > CHALLENGES IN MODERATING A MATRIX COMMUNITY: A WEEK-LONG EXPERIENCE > THE CHALLENGE OF EXISTENCE: A MINDFULNESS PRACTICE FOR PRESENT-MOMENT AWARENESS > OPENAI INVESTIGATES MULTIPLE AI AGENT ESCAPES FROM TEST ENVIRONMENTS > RIVIAN SPINOFF ALSO BEGINS E-BIKE DELIVERIES AMID SUPPLY CHAIN CHALLENGES> ADOBE CAMPAIGN CLASSIC CVSS 10.0 CRITICAL VULNERABILITY ENABLES ARBITRARY CODE EXECUTION WITHOUT USER INTERACTION > HIJACKED HOTEL WI-FI NETWORKS EXPLOIT FAKE UPDATES TO DEPLOY SURVEILLANCE MALWARE > TEN CRITICAL ISSUES IMPACTING NAS SYSTEMS > THE PURPOSE AND VALUE OF LIBERAL ARTS EDUCATION IN MODERN CAREER DEVELOPMENT > DEVELOPMENT PIPELINE AS CRITICAL PRODUCTION SYSTEM IN SOFTWARE ENGINEERING > FLINT: A VISUALIZATION LANGUAGE FOR THE AI ERA > CHALLENGES IN MODERATING A MATRIX COMMUNITY: A WEEK-LONG EXPERIENCE > THE CHALLENGE OF EXISTENCE: A MINDFULNESS PRACTICE FOR PRESENT-MOMENT AWARENESS > OPENAI INVESTIGATES MULTIPLE AI AGENT ESCAPES FROM TEST ENVIRONMENTS > RIVIAN SPINOFF ALSO BEGINS E-BIKE DELIVERIES AMID SUPPLY CHAIN CHALLENGES