Data protection senior officials call for 'immediate review' of data protection models.
Francisco Pérez Bes, president and deputy of the AEPD, said in a Monday blog post that an individual deployed an AI agent that used a “known large language model (LLM)” to carry out the attack on an organization.
Pérez Bes did not name the LLM used to support the attack, but said whoever was behind it used the agent to “successfully chain together different phases of the attack.”
Spain’s first AI agent attack comes as the AEPD recently recorded its busiest year for data protection complaints.
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Spain’s data protection agency has reported the country’s first-ever personal data breach caused by the actions of an autonomous AI agent.
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The article, shortened and in plain language
Data protection senior officials call for 'immediate review' of data protection models.
Spain’s data protection agency has reported the country’s first-ever personal data breach caused by the actions of an autonomous AI agent.
Francisco Pérez Bes, president and deputy of the AEPD, said in a Monday blog post that an individual deployed an AI agent that used a “known large language model (LLM)” to carry out the attack on an organization.
The agent scanned “generic files” before accessing the organization’s system, then ran vulnerability scans to find flaws that would give it read/write access to files containing personal data and invoices.
Pérez Bes did not name the LLM used to support the attack, but said whoever was behind it used the agent to “successfully chain together different phases of the attack.”
The Register asked AEPD for more information.
Spain’s first AI agent attack comes as the AEPD recently recorded its busiest year for data protection complaints.
According to its most recent annual report, covering 2025, the agency received 30,931 complaints representing a 64 percent increase compared to the year before.
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