Autonomous AI agent hit Spanish firm with vulnerability scans before
accessing files and data

Date:
Thu, 17 Sep 2026 10:15:00 +0000

Description:
Spanish data protection agency disclosed a breach done by an AI agent powered by a well-known LLM.

FULL STORY ======================================================================Copy link Facebook X Whatsapp Reddit Pinterest Flipboard Threads Email Share this article 0 Join the conversation Follow us Add us as a preferred source on Google Newsletter Subscribe to our newsletter Spains data protection agency (AEPD) reported its first breach carried out by an autonomous AI agent Agent chained multiple attack stages: accessed public files, scanned systems, exploited a flaw, and modified data AEPD urged businesses to factor AIdriven attacks into risk assessments, stressing faster response and stronger
identity controls A Spanish company was apparently hit with a data breach conducted by an autonomous AI agent.

Earlier this week Francisco Prez Bes, president and deputy of the Spanish
data protection agency (AEPD) published a new article on the agencys blog, saying it received the first notification of a personal data breach in which the incident was reportedly carried out using an artificial intelligence
agent powered by a well-known large language model. As per Prez Bes, the
agent first used the targets publicly accessible files, through which it was able to log into its system. From the inside, the agent then started scanning for vulnerabilities and after finding one, used it to modify personal data
and gain access to invoices. Latest Videos From TechRadar Watch full video here: A call to action The author stresses that there is very little known about this incident and that a thorough investigation is currently ongoing.
He pointed out that the attack doesnt imply the AI model or the providers infrastructure were compromised or malicious by design, but said that the attack was significant from a data protection perspective, since the AI agent was used to chain together multiple stages of the attack.

For Prez, the attack is a call to action - businesses need to rethink how
they assess and manage security risks. He claims businesses need to
explicitly account for AI-assisted and AI-driven attacks when assessing the risks associated with personal-data processing, and need to reassess their response times. You may like Hugging Face confirms it was hit by cyberattack powered by an AI agent Agentic AI is increasing the pressure on organizations to reduce cyber risk exposure Rogue AI agents arent flukes, theyre patterns

Procedures designed around manually executed attacks may not be sufficient when an AI agent can analyze multiple assets at once, test different avenues of attack, and rapidly adapt its behavior based on what it finds.

He also stressed the growing importance of digital identities and
credentials, since an AI agent with an account or an API key can operate at machine speed and move across different services before an organization has time to detect the anomalous activity. Are you a pro? Subscribe to our newsletter Sign up to the TechRadar Pro newsletter to get all the top news, opinion, features and guidance your business needs to succeed! Contact me
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Link to news story: https://www.techradar.com/pro/security/autonomous-ai-agent-hit-spanish-firm-wi th-vulnerability-scans-before-accessing-files-and-data


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