Brinztech Alert: The Alleged Database of Yamm is on Sale

Dark Web News Analysis

The dark web news reports that an alleged database containing refund order information from Yamm, a Saudi Arabian e-commerce platform, is being sold on a hacker forum. The dataset reportedly contains over 28,900 records originating from a purported breach that occurred in July 2025. The exposure of specific “refund” data suggests a compromise of the post-sales support system or financial reconciliation tables. The leaked fields include sensitive customer details such as full names, phone numbers, purchase dates, and potentially even customer reviews.

Key Cybersecurity Insights

The breach of a Saudi e-commerce player highlights a growing trend of targeted attacks in the Middle East:

• Exposure of PII: The combination of customer full names and phone numbers creates a significant risk of identity theft and targeted phishing. Attackers can use the “purchase date” and “refund status” to craft highly convincing SMS messages (“Smishing”) pretending to be Yamm support resolving a pending refund.
• Financial Data Risk: While the sample does not explicitly show full credit card numbers, the presence of “Payment Method” and “Refund Method” fields is critical. It reveals which banks or digital wallets customers use, allowing attackers to tailor their social engineering attacks (e.g., impersonating a specific bank like Al Rajhi or STC Pay).
• Targeted Regional Campaign: The seller’s specific focus on Middle Eastern e-commerce and telecom data suggests a targeted campaign. This often indicates that a threat actor has found a common vulnerability (like a specific payment gateway plugin) used by businesses in the region.
• Operational Intelligence: The inclusion of customer reviews in the leak is unusual. It provides competitors with unfair insights into Yamm’s product quality issues and customer return rates.

Mitigation Strategies

To protect customers and comply with local data regulations, the following strategies are recommended:

• Compromise Assessment: Conduct a thorough investigation to validate the data. Verify if the 28,900 records match internal refund logs from July 2025. Identify if the breach came through a third-party customer support tool or the main database.
• Customer Notification: Prepare a communication plan to inform affected customers. In Saudi Arabia, transparency is vital for maintaining trust. Advise customers to be vigilant against calls or messages asking for banking OTPs under the guise of processing refunds.
• Enhanced Security Measures: Implement Multi-Factor Authentication (MFA) for all administrative access to the e-commerce backend. Strengthen data encryption for stored PII and review API permissions to ensure that “refund” tables are not publicly accessible.
• Vulnerability Scanning: Perform regular vulnerability scans and penetration testing (VAPT). Focus specifically on API endpoints used for processing returns and handling customer feedback.

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