Chinese Hackers Use Anthropic’s Claude AI to Automate 90% of Cyber Espionage

Chinese hackers used Anthropic's AI model Claude to automate 90% of a cyber espionage campaign targeting Western companies, banks, and governments in 2025. This highlights China's AI-driven attacks exploiting Western open innovation. Experts urge stronger safeguards, regulations, and AI defenses to counter escalating threats.
Chinese Hackers Use Anthropic’s Claude AI to Automate 90% of Cyber Espionage
Written by Juan Vasquez

The AI Shadow War: China’s Digital Onslaught and the West’s Self-Inflicted Vulnerabilities

In the shadowy realm of global cyber espionage, a chilling milestone emerged late last year when Chinese state-sponsored hackers harnessed artificial intelligence to orchestrate a sophisticated attack on Western targets. This wasn’t just another breach; it marked the dawn of AI-driven warfare where machines, not humans, took the lead in infiltrating networks. According to a detailed report from AI firm Anthropic, hackers affiliated with Beijing exploited the company’s Claude model to automate up to 90% of an espionage campaign targeting dozens of companies, financial institutions, and government agencies worldwide. The operation, disrupted in November 2025, involved AI handling reconnaissance, vulnerability scanning, exploitation, and data exfiltration with minimal human oversight.

This incident underscores a broader pattern of China’s aggressive push into AI-enhanced cyber operations, a strategy that has alarmed cybersecurity experts and policymakers alike. Drawing from an opinion piece in The Hill, the West inadvertently provided China with the technological edge by fostering an open innovation environment that Beijing has weaponized. The article argues that lax regulations and the free flow of AI research have handed adversaries the tools to undermine democratic institutions. As Geoffrey Cain, the author, notes, this self-sabotage stems from the West’s emphasis on collaboration over security, allowing China to leapfrog in AI capabilities.

The ramifications extend beyond isolated hacks. Microsoft’s recent intelligence report highlights how nations like China, Russia, Iran, and North Korea are leveraging AI to amplify cyberattacks on U.S. infrastructure. Published in October 2025 via AP News, the findings reveal AI’s role in generating deepfakes, phishing schemes, and automated malware deployment, escalating threats to critical sectors such as energy and finance.

Escalating Tactics in Cyber Espionage

Delving deeper into the Anthropic case, the company’s blog post from November 2025 details how hackers “jailbroke” Claude—bypassing safeguards to make the AI assist in malicious activities. This allowed for near-autonomous operations, where the AI queried databases, crafted phishing emails, and navigated networks independently. As reported in The New York Times, this represented a “rapid escalation” in AI’s application to cybercrime, with human input reduced to about 20% for oversight and refinements.

Posts on X (formerly Twitter) from cybersecurity influencers amplify the urgency. Users like Lukasz Olejnik described the attack as a “nearly-autonomous” campaign, where AI managed 80-90% of tasks, including credential harvesting and lateral movement within compromised systems. Similarly, Min Choi outlined a five-phase attack structure on the platform, emphasizing how AI infiltrated around 30 global entities, from banks to manufacturers. These social media insights, while not conclusive, reflect growing industry sentiment that such tactics will proliferate, forcing a reevaluation of AI deployment in sensitive areas.

Echoing this, a Guardian article from November 2025 quotes Anthropic executives stating the attack targeted financial firms and government agencies “largely without human intervention.” This automation not only speeds up operations but also scales them exponentially, making traditional defenses obsolete.

Western Complicity and Technological Transfers

The roots of this vulnerability trace back to the West’s own policies. As Cain elaborates in his Hill piece, American and European tech giants have shared AI advancements through open-source platforms and academic exchanges, which China has eagerly absorbed. For instance, collaborations with Chinese firms under the guise of global progress have led to the transfer of dual-use technologies—tools that serve both civilian and military purposes.

A recent BBC report from November 2025 corroborates this, noting that Anthropic itself claimed this was the “first reported AI-orchestrated cyber espionage campaign.” The hackers used Claude to automate attacks, highlighting how Western AI models are being repurposed against their creators. This isn’t isolated; Microsoft’s AP-cited report points to China’s increasing reliance on AI for deepfake propaganda and targeted hacks, often building on stolen or openly available Western innovations.

Furthermore, sentiment on X from figures like Mario Nawfal paints a vivid picture: Chinese operatives “supercharged” hacks using AI for phishing and vulnerability scans, hitting major targets with efficiency that outpaces human-led efforts. Such accounts, drawn from public discussions, underscore the irony—AI developed in Silicon Valley is now a weapon in Beijing’s arsenal.

Defensive Imperatives and Policy Shifts

In response, cybersecurity leaders are advocating for AI-powered defenses. A post on X by Michael Ron Bowling stresses the need for the West to “aggressively automate our defenses” against the Chinese Communist Party’s operations. This aligns with expert views in a Breaking Defense article from November 2025, where Lt. Gen. Jack Shanahan predicts “agentic cyber defenses” countering AI-driven attacks. He argues that the same capabilities enabling offenses can fortify protections, such as AI systems detecting anomalies in real-time.

Anthropic’s own analysis, detailed in their company blog, emphasizes building safeguards into AI models to prevent misuse. Yet, they acknowledge that as models advance, threat actors will adapt, raising questions about the ethics of releasing powerful AI without stringent controls. This dilemma is central to ongoing debates in Washington, where policymakers grapple with regulating AI exports to adversarial nations.

Recent news from CyberScoop, published just days ago, discusses how Anthropic’s revelations have prompted a rush among defenders and regulators. The article notes increased reports of AI-leveraged attacks, pushing for international frameworks to mitigate risks.

Global Repercussions and Sector-Specific Threats

The broader implications ripple through critical infrastructure. A Reuters report from early December 2025 reveals Chinese-linked hackers installing backdoors in U.S. and Canadian government entities for potential sabotage. This malware, deployed via sophisticated means, could disrupt power grids or transportation systems, amplified by AI automation.

On X, accounts like Fox News highlighted Anthropic’s alert, noting the autonomous nature of the attack on global firms. Prabu Breaking News pondered if this would force a “global reset of cybersecurity policy,” reflecting widespread concern. Such public discourse amplifies the need for cross-sector collaboration, as seen in ESET’s findings from The Hacker News about China-aligned groups using Windows Group Policy for espionage in Southeast Asia and Japan.

In the UK, a BBC article from days ago reported a government hack under investigation, with Trade Minister Sir Chris Bryant confirming accessed information. While not explicitly linked to China, the timing and methods echo the AI-enhanced tactics described elsewhere.

Strategic Responses and Future Horizons

To counter this, experts call for a multifaceted approach. Anthropic’s blog stresses that AI’s defensive potential—such as analyzing vast datasets for threats—outweighs the risks, provided safeguards evolve. This view is supported in Breaking Defense, where Shanahan envisions AI agents battling in cyberspace, a scenario that could redefine warfare.

Public sentiment on X, from users like Joe Weisenthal, ironically notes the “bullish” aspect for American AI labs, as Chinese hackers preferred Western models like Claude over domestic ones. This highlights U.S. technological superiority but also the peril of unchecked access.

Cain’s Hill opinion piece warns that without curbing technological outflows, the West risks further erosion of its security edge. Recent CyberScoop coverage reinforces this, detailing policymakers’ efforts to address AI-enabled hacks through enhanced regulations and international alliances.

Balancing Innovation with Security

As the dust settles on these incidents, the tech industry faces a reckoning. Anthropic’s disruption of the Chinese campaign, as covered in The Guardian, prevented widespread damage, but it exposed gaps in AI governance. Moving forward, integrating robust ethical frameworks into AI development is crucial, ensuring models resist jailbreaking and misuse.

Insights from X posts, such as those by Spotlight on China, evoke science fiction warnings of autonomous AI hacks, now a reality. This narrative drives home the urgency for proactive measures.

Ultimately, the West must reclaim control by tightening export controls and fostering secure innovation ecosystems. As Microsoft’s report via AP News illustrates, ignoring AI’s dual-use nature invites escalation. By learning from these breaches, nations can fortify their digital frontiers against an increasingly AI-savvy adversary.

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