4KMILES
Data Breach
www.4kmiles.com6,242
Records Exposed
Oct 2019
Date of Breach
Database
Breach Type
Oct 2026
Added to Database
About This Breach
In October 2019, 4KMILES (4K Miles), a China-based SaaS platform and Amazon official partner that helps Amazon sellers manage and streamline their sales operations, suffered a data breach that exposed its user account database. The exposed data included email addresses, usernames and nicknames, phone numbers, encrypted account passwords, WeChat and QQ social media accounts, users' city/region locations and, for a small number of accounts, bank card details. The records were later distributed via a Telegram channel linked to BreachForums. (This record covers the ~6.2K user-account table only; a separate ~9.4 million-row table of Amazon marketplace alias shipping addresses from the same breach is excluded.)
Compromised Data Types
Country
China
Language
Chinese
Category
Technology, E-commerce
Indexed On
Oct 11, 2026
Breach Type
Database
What Should You Do?
Get Full Breach Details with LeakedSource Pro
Sign up for a LeakedSource Pro account to see exactly what data was exposed in this breach and get real-time notifications when your information appears in new breaches.
Sign Up for Pro- Change your password immediately on 4KMILES and any other site where you used the same password. Use a unique, strong password for each account.
- Watch for phishing emails targeting your inbox. Attackers may use your exposed email address to send convincing scam messages.
- Be alert to smishing attacks (SMS phishing). Scammers may text you pretending to be banks or service providers.
- Monitor your financial accounts closely. Check credit reports and bank statements for any unauthorized activity.
- Enable two-factor authentication (2FA) on all important accounts to add an extra layer of security.
- Use a password manager to generate and store unique, strong passwords for every account.
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