Spain's Data Protection Agency Logs the First Breach Where an AI Agent Chained the Whole Attack Itself

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The AEPD disclosed an incident where a third party used an AI agent to autonomously chain a successful login, vulnerability discovery, access to personal data, and modification of invoices, with no human stepping in between phases. The agency called it a qualitative change in attack methodology and framed the risk explicitly: 'An agent can receive a goal, plan intermediate tasks, use tools, execute code, consult sources, interpret results, and modify its actions autonomously.' The breached organization and the number of affected individuals were not disclosed, and outside analysts said there is still not enough information to reconstruct how the model carried it out.