Your Contact Details May Already Be Circulating. The Kemal Tanca Breach Exposed 67,539 Records.

HEROIC analysts detected a large-scale database breach affecting Kemal Tanca, a prominent Turkish footwear retailer, with the data surfacing on August 28, 2023. The breach compromised 67,539 customer records from Turkey, each containing a combination of email addresses, phone numbers, first names, and last names. The volume and detail of the exposed data make this incident a significant source of risk for anyone who shopped on the Kemal Tanca platform.

67,539 Turkish Customers Now Face Targeted Fraud Campaigns

When an attacker has a phone number, full name, and email address for nearly 70,000 people, they have everything needed to run professional-grade social engineering at scale. Victims can be contacted by SMS, email, and voice call simultaneously, with messages personalized to their real name and referencing a retailer they actually used. This combination is particularly effective for smishing attacks designed to steal banking credentials, and for SIM swap fraud where the attacker convinces a mobile carrier to transfer the victim's phone number to an attacker-controlled SIM. The resulting account takeovers and identity theft can persist for months before the victim realizes what hapened.

What Was Exposed in the Kemal Tanca Breach

• Email Address
• Phone Number
• First Name
• Last Name

Why This Scale of Breach Amplifies Every Risk

A breach of 67,539 records is large enough to attract serious criminal interest. Data of this volume is frequently sold to multiple buyers on dark web marketplaces, meaning the exposed records can end up in the hands of many different threat actors over time. Each buyer may use the data differently: some will run phishing campaigns, others will attempt credential stuffing against financial platforms, and some will merge it with other leaked datasets to build detailed profiles for identity fraud. Once data reaches this scale and distribution, the window for affected individuals to get ahead of potential attacks becomes very narrow. The Turkish context also adds regulatory exposure for the company under the country's Personal Data Protection Law.

How Database Breaches Work

A database breach occurs when an unauthorized party gains access to the data storage layer of a web application, bypassing the application itself entirely. Common entry points include SQL injection vulnerabilities, exposed database ports, stolen administrative credentials, and misconfigured cloud infrastructure. Retail platforms like Kemal Tanca maintain customer databases for order management, loyalty programs, and marketing, meaning a successfull intrusion can yield comprehensive contact records for the entire customer base. The Kemal Tanca breach appears to be a direct database extraction, with the resulting dataset distributed through underground channels starting August 28, 2023.

Check If Your Data Was Exposed

HEROIC offers a free breach scanner that searches across more than 400 billion compromised records. If your email address was part of the Kemal Tanca breach or any other known incident, the scanner will surface it immediately. Do not wait for the company to notify you. Run a free search at HEROIC and find out exactly what data of yours is currently in circulation.