The Washington Post reports:

Tens of thousands of South Koreans had their financial data exposed online in recent weeks after at least nine major banks there suffered cyberattacks that suggested a dark future for online security. One man, a 26-year-old living in southern China, was allegedly behind the attacks, according to an investigation by cybersecurity company CrowdStrike. Traces left online and failure to secure his own systems allowed investigators to piece together the man's name, age, location and what he allegedly did. The clues revealed that the devastating assault on some of Asia's most sophisticated financial institutions was the work of an amateur. The attacks were launched with help from a few artificial intelligence chatbots, CrowdStrike found, before asking one to help sell the stolen data online and draft a fake résumé touting cybersecurity skills...

The hacker who broke into the South Korean banks had access to Anthropic's Claude, but because the U.S. firm's tools generally refuse to take illegal actions, free Chinese models were also used, including DeepSeek, CrowdStrike found. "The models are interchangeable," said Meyers, the CrowdStrike executive.

The Post calls it "part of a wave of AI-enabled hacking that is advancing across the world, triggering alarm inside national governments as well as multinational companies."

"Basically any pedestrian, non-hacker can take these frameworks and start leveraging them to go after different targets," said Adam Meyers, senior vice president of counter adversary operations at CrowdStrike. The company has tracked an increase in the speed with which cyberattacks can move once inside a target's networks, as seasoned hackers and rank amateurs alike get a boost from AI tools. "Anyone can be a super-hacker now," Meyers said... Many cyber experts still expect the security reckoning to intensify as AI tools that can find and exploit software bugs become more widely distributed and understood.

[Last] Monday, The Post reported that cybersecurity researchers from the start-up Cathedral who set out to test Anthropic's security found that they could access internal messages and meeting transcripts. Cathedral reported its findings to Anthropic, which said it resolved the newly discovered problems... Security experts say it's unlikely that any hacker is forgoing the use of AI tools right now.
Even in America, critical infrastructure like energy and water companies need to be "immediately and comprehensively" tested for exploitable bugs, according to Snehal Antani, chief executive of cybersecurity company Horizon3. He tells the Post the government might need to fund that remediation, and even form "a public and private partnership to accelerate incident response."

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