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AI Agent Carries Out Multi-Stage Data Theft Attack
Spain's data protection agency reports the country's first agentic AI-powered breach: an AI agent logged in, found vulnerabilities, and modified personal data.
Spain's Agencia Espanola de Proteccion de Datos (AEPD) disclosed on September 14 what it calls the country's first agentic AI-powered personal data breach. An agent using a known language model scanned generic files to log in, then autonomously searched for application vulnerabilities, modified personal data, and accessed invoices. AEPD said the agent was used as an instrument to chain attack phases, implying deliberate use by a threat actor rather than a rogue model. CybaVerse CTO Simon Phillips suggested the actor likely jailbreaked or bypassed the model's guardrails.
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First Agentic AI Data Breach Reported to Spanish Regulator
Spain's AEPD reported the first data breach executed by an AI agent, which autonomously chained login, vulnerability discovery, and personal data modification.
Spain's Data Protection Agency (AEPD) published details of the first breach notification in which an AI agent executed the attack, achieving a successful login, searching for vulnerabilities, and modifying personal data and accessing invoices. The agency called the agent's autonomous chaining of attack phases a qualitative change and urged updated risk analysis, faster incident response, and stronger credential protection. Investigation is ongoing; commentators cite possible causes including a guardrail jailbreak, an escaped test model, or an unauthorized LLM-based penetration test.
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Spain reports first alleged AI-powered data theft attack
Spain's data protection agency received a report of an AI agent autonomously exploiting flaws, logging in, altering personal data, and reading invoices.
The Spanish Data Protection Agency (AEPD) was notified of an incident in which an AI agent powered by a known LLM reportedly searched for vulnerabilities, gained access to systems, modified personal data, and accessed financial documents. AEPD has not yet investigated or verified the report but says it shows AI-related data breaches are no longer theoretical. The agency urged defenders to revise incident-response procedures, strengthen credential and identity security, and explicitly account for machine-speed AI-assisted attacks.
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Week in review: F5 data breach, Microsoft patches three actively exploited zero-days
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Surfshark VPN says hackers breached internal testing, proxy servers
Surfshark disclosed that hackers accessed misconfigured internal test and proxy servers, exposing build credentials but not customer data, VPN traffic, or production infrastructure.
Surfshark said a human error left an internal engineering test server reachable from the internet, exposing service configurations, build-related credentials, and portions of system binaries and code history. A separate proxy server used for content-accessibility optimization was also accessed, but it stored no user identity data, IP addresses, encryption keys, or browsing traffic. Suspicious activity was detected on August 31, contained on September 2, and remediation completed on September 5, with no evidence of credential misuse or spread to other systems. The company rotated impacted credentials, revoked exposed tokens, added monitoring and hardening, and commissioned an independent infrastructure audit; no customer action is required.
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Week in review: Revolut data breach, ManageEngine RCE flaw, free Linux security training courses
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