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Stolen AI access leaves companies with cloud bills of up to $1 million

ID: 59e6bba7-b465-5740-940c-b28202025f5b

STIX ID: report--59e6bba7-b465-5740-940c-b28202025f5b

Feed Name: Help Net Security

Threat Score
75/100

Date Published: 2026-11-03

Date Updated: 2026-11-03

Author: Sinisa Markovic

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Researchers from Google Threat Intelligence Group and Mandiant investigated multiple 2026 incidents of "LLMJacking," where attackers obtain stolen cloud/API credentials or exploit model-routing vulnerabilities to run large-scale LLM workloads on victim accounts and resell access via underground services, causing fraudulent cloud bills up to hundreds of thousands or millions of dollars and affecting multiple sectors and regions.

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