Endo Shop Data Breach Exposes 38,945 South Korean Shopper Records

HEROIC's DarkHive intelligence system discovered the Endo Shop data breach, exposing 38,945 records in August 2018. Endo Shop is a South Korean e-commerce platform that suffered a database compromise affecting tens of thousands of customers. The leaked data included email addresses and MD5 password hashes, putting online shoppers at risk of credential theft and account fraud.

Why This Is Dangerous

E-commerce platform users frequently store payment method preferences and shipping addresses in their accounts, making compromised accounts particularly valuable to attackers beyond just credential reuse. MD5 password hashes can be cracked using widely available tools, converting hashed passwords into plaintext credentials ready for account takeover attacks. South Korean online shoppers targeted in this breach face risks ranging from unauthorized purchases to identity theft and fraudulent financial applications.

What Was Exposed

• Email Address
• Password Hash (MD5)

Why This Matters

Credential stuffing attacks targeting e-commerce platforms are among the most financially motivated cyber attacks because successful account access can lead directly to fraudulent purchases, payment card theft, or resale of compromised account access. Korean-language e-commerce users who reused their Endo Shop password on other platforms including banking apps, food delivery services, or social media face ongoing risk of account compromise. The breach data circulating since 2018 continues to fuel automated credential stuffing campaigns against Korean digital services.

How Database Breaches Work

E-commerce database breaches typically occur when attackers exploit SQL injection vulnerabilities, compromise administrative credentials through phishing, or leverage unpatched shopping cart software vulnerabilities. South Korean e-commerce platforms running on older frameworks are particularly vulnerable because legacy code may lack input validation against injection attacks. Once the database is extracted, the stolen data is sold on dark web markets and Telegram channels where criminals use it for fraud, unauthorized account access, and resale.

Check If You Are Affected

HEROIC offers a free identity scanner searching over 400 billion records including data from the Endo Shop breach. Visit heroic.com to check if your information was exposed.