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Chinese Developer Makes ARTEX AI Agent Closed-Source After Korean Bank Hack

CrowdStrike said the attacks affected at least 9 banks and may have involved a China-based 26-year-old using ARTEX to steal customer data.

  • On Thursday, the developer of ARTEX, Autumn-27, converted the AI agent to closed source following its misuse in cyberattacks on South Korean banks. The project will no longer receive updates or maintenance support.
  • The South Korean government said it was "highly likely" ARTEX was used in data breaches at more than seven financial institutions. South Korea's Financial Services Commission reported more than 68,000 people were affected by the hacks.
  • US cybersecurity firm CrowdStrike reported on Wednesday that the attacker is likely a China-based 26-year-old who used ARTEX and Anthropic's Claude Code. "The threat actor is likely a Chinese speaker and financially motivated," a CrowdStrike blog post said.
  • Poe Zhao, founder of Hello China Tech, warned the action "cannot remove copies already downloaded or prevent people from continuing to use them". Because the code was public, attackers can still customize and run the agent for unauthorized purposes.
  • Similar cyberattacks have surfaced in Japan, where around 20 companies reported data compromises affecting millions of customers. South Korean President Lee Jae Myung stated the "scope of the damage is spreading across all areas on a scale that is difficult to compare with the past".
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ARTEX, a Chinese artificial intelligence (AI) penetration testing tool, is halting public development following a controversy over its misuse. ARTEX is reported to have been used in a series of recent hacking attacks targeting the South Korean financial sector. According to foreign media outlets such as AFP and Reuters on the 10th, ARTEX developer 'Autumn-27' wrote in a post uploaded to the developer platform GitHub on the 8th that ARTEX had bee…

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Chinese developer makes ARTEX AI agent closed-source after Korean bank hack

Read more about Chinese developer makes ARTEX AI agent closed-source after Korean bank hack on Devdiscourse.

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CryptoTendence The creator of ARTEX closed the code and suspended updates after reports linking the tool to attacks on South Korean banks.The entry ARTEX passes to closed code after its alleged use in attacks on South Korean banks was first published in CryptoTendence.

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Live Mint broke the news in New Delhi, India on Friday, October 9, 2026.
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