AI-powered hacking tools enabled a likely single attacker to breach multiple South Korean banks
A single attacker with an open-source AI hacking tool breached multiple South Korean banks and stole 25,000+ customer records. Here's what enterprise security teams need to know.

Why it matters
AI-powered penetration testing tools are lowering the barrier to entry for large-scale financial breaches, enabling one person to compromise multiple institutions. This is a concrete shift in attack surface and threat modeling that infosec teams and enterprise buyers must account for now.
The key facts
7 to knowShinhan Bank: 25,000+ customer records stolen
Attacker: suspected Chinese-speaking, likely single operator
Tool used: ARTEX (open-source automated penetration testing tool)
AI models leveraged: DeepSeek, GLM-5.3
Source: CrowdStrike
Target: multiple South Korean financial institutions
Impact framing: single attacker, massive breach scale
Go to the source
The Decoderthe-decoder.com
Publisher excerpt: According to CrowdStrike, a suspected Chinese-speaking attacker hacked multiple South Korean financial institutions. At Shinhan Bank alone, more than 25,000 customer records were stolen. The attacker used ARTEX, an open-source tool that uses AI models like DeepSeek and GLM-5.3 for automated…