Cyber showdown: US company claims it crushed China's AI mega attack!

Sharing details the event, Claude said, "In mid-September 2025, we detected suspicious activity that later investigation determined to be a highly sophisticated espionage campaign. The attackers used AI’s 'agentic' capabilities to an unprecedented degree—using AI not just as an advisor, but to execute the cyberattacks themselves."

"The threat actor—whom we assess with high confidence was a Chinese state- group—manipulated our Claude Code tool into attempting infiltration into roughly thirty global targets and succeeded in a small number of cases. The operation targeted large tech companies, financial institutions, chemical manufacturing companies, and government agencies. We believe this is the first documented case of a large-scale cyberattack executed without substantial human intervention," the company said.

The company said it launched an investigation after detecting the trouble.

"Over the following ten days, as we mapped the severity and full extent of the operation, we banned accounts as they were identified, notified affected entities as appropriate, and coordinated with authorities as we gathered actionable intelligence," the AI firm said.

The company said the campaign has substantial implications for cybersecurity in the age of AI “agents”—systems that can be run autonomously for long periods of time and that complete complex tasks largely independent of human intervention.

"Agents are valuable for everyday work and productivity—but in the wrong hands, they can substantially increase the viability of large-scale cyberattacks," the statement said.

The company alerted that these attacks are likely to only grow in their effectiveness.

"To keep pace with this rapidly-advancing threat, we’ve expanded our detection capabilities and developed better classifiers to flag malicious activity. We’re continually working on new methods of investigating and detecting large-scale, distributed attacks like this one," the firm said.

Senior Staff Reporter at Northeast Herald, covering news from Tripura and Northeast India.

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