Brinztech Alert: The Alleged Database of VNPOST is Leaked

Dark Web News Analysis

The dark web news reports a critical data breach involving VNPOST (Vietnam Post), the national postal service of Vietnam. A threat actor known as “caosho” claims to possess a real-time shopping database belonging to the organization.

The leak is not a static dump but is advertised as being updated on a “daily basis,” implying the attacker has established persistent access to VNPOST’s systems (likely an API or web shell). The compromised data includes Customer Names, Phone Numbers, Shipping Addresses, Order Details, and operational Tracking Codes. The attacker has provided samples to verify the authenticity of the real-time flow.

Key Cybersecurity Insights

Breaches of national postal services are “Tier 1” logistics threats because they undermine the trust in the country’s e-commerce infrastructure:

• The “COD” (Cash on Delivery) Fraud: The most immediate risk is COD Scamming. In Vietnam, Cash on Delivery is a popular payment method. Attackers with access to Real-Time Tracking Codes and Phone Numbers can call the customer just before the real delivery arrives, claiming to be the shipper and demanding a digital payment to “release” the package, or sending a fake package to collect the cash.
• Persistent Access Danger: The claim of “daily basis” possession suggests this is a Persistent Advanced Threat. The attacker likely has an automated script scraping the data as it hits the server. This indicates a deep-seated vulnerability, such as a compromised API key or an unpatched backdoor in the logistics management software.
• Physical & Supply Chain Risk: The exposure of Shipping Addresses and Order Details allows criminals to identify high-value shipments (e.g., electronics). They can use this intelligence to physically intercept or steal packages from doorsteps before the recipient retrieves them.
• Phishing Precision: With the tracking code, attackers can send SMS messages: “VNPOST: Your package [Code] is held at customs. Pay 50,000 VND fee here.” Because the code is real, the victim trusts the message implicitly.

Mitigation Strategies

To protect the logistics chain and customer property, the following strategies are recommended:

• Forensic Hunt: VNPOST must urgently conduct a threat hunt to identify the “persistent” access point—likely a rogue API connection or a compromised partner account—and sever it immediately.
• Customer Advisory: Issue a nationwide alert via the VNPOST app and SMS, warning customers that official shippers will never ask for bank transfers over the phone or via unverified links.
• Tracking Page Security: Implement CAPTCHA or login requirements on the public tracking page to prevent automated scripts from validating stolen tracking numbers.
• Data Flow Analysis: Audit all outbound traffic from the order management system to detect the unauthorized stream of data being exfiltrated daily.

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