Hackers Launch LLMHijacking Attacks, Leaving Companies With $1 Million in Cloud Bills

Hackers are stealing access to corporate large language models and reselling it, leaving victims with cloud bills reaching $1 million. Mandiant investigated multiple incidents during 2026 where unauthorized AI use generated more than $100,000 in charges in a single day, showing how quickly stolen credentials can become a major financial loss. Google Threat Intelligence Group…

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Source published: 04 Nov 2026, 10:14 AM IST. Source facts take precedence over AI interpretation.