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ARTICLE · 02 JULY 2025

Turkish DPA Flags Mandatory SMS Verification In Purchases

KST LAW
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On 26 June 2025, the Turkish Personal Data Protection Authority ("DPA") published its Principle Decision numbered 2025/1072 ("Principle Decision") in light of the widespread...

TurkeyPrivacy
Ceren Ceyhan
Ceren Ceyhan
Hatice Nur Arslan
Hatice Nur Arslan
Simge Erdem
Simge Erdem

June 2025 – On 26 June 2025, the Turkish Personal Data Protection Authority ("DPA") published its Principle Decision numbered 2025/1072 ("Principle Decision") in light of the widespread use of mandatory SMS verification codes requested from data subjects (e.g., consumers) during various product and service transactions (e.g., payment, registration, or membership processes).

The DPA underlined the non-compliance risk of such SMS verification processes under the Personal Data Protection Law No. 6698 ("DP Law") and cautioned that data controllers could be subject to sanctions.

Background

Numerous complaints were submitted to the DPA concerning service providers (e.g., retail stores) that request data subjects' phone numbers and send SMS verification codes under the pretext of completing a transaction, issuing invoices, or updating consumer information. It has been observed that the collected data through SMS verification is repeatedly used to send commercial

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