The Incident (The Identity Theft Verification Quest): A Spanish citizen discovered they had been the victim of identity theft when fraudsters used their personal data and a photograph of their national identity card (DNI) to fraudulently contract telecommunications services. After filing a police report (atestado nº ***REFERENCIA.1), the victim embarked on a systematic campaign to contact every telecommunications operator in Spain to verify whether their personal data had been used to fraudulently open accounts. On 25 October 2024, they sent an email to Telfy Telecom S.L., a Spanish telecommunications provider, asking a simple but critical question: "Do you have, or have you ever had, my personal data registered as a customer in your systems?"
The Company's Silence (The "Spam Filter" Defence): Telfy Telecom never responded to the victim's email. For nearly 11 months, the identity theft victim received no acknowledgment, no confirmation, and no information from the company—despite the fact that this information was essential to understanding the full scope of the fraud committed against them. The victim had no way of knowing whether Telfy's systems had been compromised by the fraudsters or whether the company held records that could help identify the criminals.
The Complaint and Investigation: Frustrated by the complete absence of response, the victim filed a formal GDPR complaint with the AEPD on 19 July 2025. The AEPD transferred the complaint to Telfy on 24 September 2025 under Article 65.4 LOPDGDD, giving the company an opportunity to explain their failure to respond. Telfy ignored this initial AEPD communication as well. On 19 October 2025, the AEPD formally admitted the case for full investigation. Finally, on 28 November 2025, the AEPD granted Telfy a formal hearing period, requiring them to submit written defences within 15 business days.
The Belated Response and Excuses: Only after receiving the formal hearing notice did Telfy finally respond—on 22 December 2025, more than 14 months after the original access request. The company offered a series of justifications:
The Core Ruling (Formal Estimation Despite Excuses): The AEPD categorically rejected Telfy's defences and ruled in favour of the complainant. The regulator found that regardless of technical spam filtering issues, Telfy violated Article 15 GDPR and Article 12.3 GDPR by failing to respond to a legitimate access request within 30 days. The AEPD emphasised that the burden of proof lies with data controllers to demonstrate they have proper systems in place to receive and process rights requests—companies cannot use technical failures as excuses for GDPR violations. However, because Telfy had eventually confirmed (albeit 14 months late) that they held no data about the victim, the AEPD determined no additional remedial action was required beyond the formal ruling against the company.
Based on Resolution EXP202515296, here is the compliance protocol for telecommunications companies, online service providers, and any business receiving rights requests via email:
Telfy's primary defence—that the access request was automatically filtered and deleted—was rejected by the AEPD.
Legal Principle: Article 12.1 RGPD requires data controllers to "take appropriate measures to facilitate the exercise of data subject rights." If your spam filters are blocking legitimate rights requests, your systems are not GDPR-compliant.
Action: Implement a dedicated, clearly publicised email address for GDPR rights requests (e.g., dataprotection@company.com or privacy@company.com) and configure email security systems to:
Telfy claimed to offer various channels for rights requests, but the victim's email was lost in one channel with no backup verification system.
Best Practice: Provide at least three methods for exercising data rights:
Action: On your privacy policy page, include a prominent section titled "How to Exercise Your Data Rights" with clear instructions for each contact method. Test all channels quarterly to ensure they function properly.
This case involved identity fraud, making the access request particularly time-sensitive.
Protocol for Fraud-Related Access Requests: When someone contacts you claiming to be a victim of identity theft or account fraud:
Rationale: Identity theft victims need urgent confirmation to assess the scope of fraud and prevent ongoing harm. A 14-month delay (as occurred here) is unconscionable in fraud contexts.
Telfy argued they responded quickly (two days) after the AEPD informed them of the request. The AEPD ruled this was irrelevant.
Legal Reality: The 30-day deadline begins when the data subject sends the request, not when the data controller becomes "aware" of it through regulatory intervention. If your systems failed to receive or route the request properly, that is your responsibility, not the data subject's problem.
Action: Implement a request tracking system that logs:
Many companies use aggressive email security systems (greylisting, spam scoring, sender reputation filtering) that can inadvertently block legitimate communications.
Technical Solution:
Test Regularly: Once per quarter, send a test access request from an external personal email address to verify it reaches the correct internal team.
Telfy claimed the email was never received, but the AEPD placed responsibility on the company to prove they have adequate systems in place.
Evidence You Must Maintain:
Action: If you receive an AEPD complaint alleging non-response to an access request, immediately pull server logs for the relevant time period. If you cannot prove the email never arrived, the AEPD will assume you received it and ignored it.
If Telfy had sent an automatic acknowledgment ("We received your request and will respond by [date]"), the victim would have known their email was received.
Implement Automatic Acknowledgments:
Telfy promised to reconfigure their email systems after this incident. The AEPD acknowledged this but still ruled against the company.
Key Principle: Implementing better systems after a violation does not excuse the original non-compliance. However, demonstrating corrective action can:
Action: If you discover your systems failed to process a rights request, immediately:
As fraud rises, more victims will contact companies asking: "Has someone used my identity to open an account with you?"
Standardised Response Protocol:
Action: Create a template response letter for identity theft verification requests to ensure consistency and completeness.
Telfy emphasised that they use the VigilaMisDatos certification system and undergo periodic audits. The AEPD was unimpressed.
Reality Check: Third-party compliance certifications, privacy seals, and audit reports are useful tools, but they do not exempt you from GDPR obligations. If your systems fail to process a rights request—regardless of your certifications—you are still liable.
Action: Use certifications and audits as process improvement tools, not as shields against accountability. If your auditor doesn't test whether your email systems actually deliver rights requests to the correct staff, your audit is incomplete.
This case establishes that technical email filtering failures are not valid defences for ignoring GDPR access requests, particularly from identity theft victims who need urgent verification of whether their data has been compromised. Telecommunications companies and online service providers must implement robust, spam-filter-proof systems for receiving and processing rights requests, with automatic acknowledgments, dedicated contact channels, and priority escalation for fraud-related inquiries. The AEPD's formal ruling against Telfy Telecom—despite the company's eventual compliance and technical remediation—creates a permanent regulatory record that could influence future sanctions for repeat violations or similar failures across the telecommunications sector.
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