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AII-1000-52353
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Anthropic reports foreign actors misuse Claude for espionage, cyberattacks, weapons

Anthropic reported that state and criminal actors from China, Russia, Iran, and Yemen used its Claude AI system to conduct cyberattacks, surveillance, and develop weapons systems. The company found actors used fake accounts and VPNs to bypass access restrictions and halted all cases identified.

9 September 2026 ยท Anthropic ยท Security and cyberattacks
9 September 2026
AII-1000-523535 sources โ†“
Quick facts
Category
Security and cyberattacks
Country
China
Source
Koran Jakarta ยฎ
Date
9 September 2026
Drafted by
Raidu Incident Detection

What happened

Anthropic reported that criminal hacker groups, Chinese security officials, Russian spies, and Yemeni weapons manufacturers used fake accounts and VPNs to access Claude despite access restrictions being in place.

Over eight months, the actors reportedly used Claude to automate cyberattacks, spread propaganda, conduct mass surveillance, and design advanced military devices. Chinese and Iranian actors used Claude to analyze social media to identify potential dissenters and sensitive political information. A Russia-based actor attempted to use Claude to build autonomous kamikaze drones.

Reported impact

Anthropic halted activity by a group in North Yemen using Claude to develop guided rockets, tiered ballistic missiles, and hypersonic launch missiles. The company discovered five cases where foreign scientists used Claude to research dangerous pathogens, including deadly viruses and highly pathogenic bird flu.

Index analysis

Anthropic Threat Research Head Jacob Klein stated that previously hypothetical misuse cases had now become real, though the cases did not involve Claude Mythos, the company's most powerful AI model.

Governance controls

Anthropic said it halted all identified cases, reported them to government and industry groups, and strengthened Claude's security systems.

Classification

Category
Security and cyberattacks
Industry
Digital security
Country
China
Harm status
Actual harm
Intent
Intentional
Timing
Post-deployment
Harm types
Human or fundamental rights, Public interest
Harmed
General public, Government
Failure modes
Jailbreak
AI systems
Claude

Sources and evidence

This record was researched and written by the Index, based on the following original reporting.

Koran Jakarta ยฎ
Anthropic Sebut Iran dan Tiongkok Gunakan AI Miliknya untuk Kegiatan Spionase
11 September 2026
Media Indonesia - News & Views -
Anthropic Ungkap Lab AI Tiongkok Curi Data Claude, untuk Apa
11 September 2026
VOI - Waktunya Merevolusi Pemberitaan
Anthropic Blokir Lima Upaya Penggunaan AI yang Berpotensi Bantu Pengembangan Senjata Biologis
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CNBCindonesia
Perang AI Dimulai, China dan Rusia Pakai Senjata Buatan Amerika
11 September 2026
IDN Times
China hingga Iran Diduga Manfaatkan AI untuk Spionase dan Senjata
11 September 2026