AI-powered hacking tools enabled a likely single attacker to breach multiple South Korean banks

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 penetration testing. CrowdStrike says the case shows how AI tools can let a single person pull off massive breaches.