Artificial Intelligence & Machine Learning
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Cybercrime
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Data Privacy
California Man Pleads Guilty to Two Felony Charges Related to Hacking Employee’s PC

A California man agreed to plead guilty to hacking a Disney employee’s personal computer and stealing over one terabyte of confidential company data. Authorities say the man posted a malicious artificial intelligence art application online and used it to steal an employee’s credentials.
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Ryan Mitchell Kramer, 25, of Santa Clarita admitted to posting a program on platforms including GitHub in early 2024 that purported to generate AI-based art. The software contained malware that granted Kramer unauthorized access to user systems. One victim was a Disney employee whose compromised credentials helped Kramer infiltrate thousands of internal Slack channels and download about 1.1 terabytes of sensitive data between April and May of 2024.
The stolen information included 44 million messages, private customer details, employee passport data and internal business discussions. In July, Kramer posed as a member of a fictitious Russian hacktivist group named “Nullbulge,” threatening to leak the data unless his demands were met. When he received no response, he released the information on multiple digital platforms.
Researchers at vpnMentor reportedly said that Kramer used the program ComfyUI_LLMVISIO, a malicious custom node uploaded to the popular Stable Diffusion user interface ComfyUI. The node, disguised as a helpful extension, was designed to steal sensitive user information, including passwords and credit card details and transmit the data to a Discord server controlled by the attacker. The fake extension sent the data to a Discord server Kramer operated. The malicious code was stored under names that included OpenAI and Anthropic to avoid suspicion.
Kramer agreed to plead guilty to two felony charges of accessing a computer and obtaining information, and threatening to damage a protected computer. Each count carries a maximum sentence of five years in federal prison. He is expected to make his initial court appearance in a Los Angeles Court in the next several weeks.