Inside Zipgo.mx Stealer Logs: 71 Passwords Harvested

HEROIC's DarkHive intelligence platform has cataloged a stealer log titled Zipgo.mx Good Access, containing 71 compromised records. Shared via Telegram in December 2024, this dataset targets users of Zipgo.mx, a Mexican service, with credentials that have been pre-validated by the threat actor for confirmed account access.

Plaintext Storage Eliminates Any Defensive Buffer

From a technical standpoint, plaintext password storage represents a total failure of credential protection. The 71 passwords in this file are stored exactly as they were typed by the user — no bcrypt, no PBKDF2, no argon2, no protection of any kind. When extracted directly from browser credential stores by infostealer malware, passwords bypass any server-side hashing entirely, because the malware captures them before they ever reach the server.

What Was Exposed

• Email Addresses — User accounts associated with Zipgo.mx services
• Plaintext Passwords — Raw credentials captured from browser storage
• URLs — Specific Zipgo.mx endpoints and related service login pages

Credential Reuse and Cross-Service Exploitation

Credential stuffing attacks transform a single set of stolen credentials into a multi-service breach. Attackers take these 71 email-password pairs and systematically test them against Mexican banking services, government portals, social media platforms, and e-commerce sites. The "Good Access" label means these credentials have already been confirmed as working, giving attackers a head start on exploitation across any service where the password was reused.

Technical Breakdown of Infostealer Credential Extraction

Infostealer malware extracts credentials through several technical mechanisms. The malware accesses browser SQLite databases where Chrome, Edge, and Firefox store saved passwords. It decrypts locally encrypted credentials using the Windows DPAPI or macOS Keychain APIs. Beyond passwords, it captures cookie databases (enabling session hijacking), autofill data, and browser extension data. Variants like RedLine, Lumma, and Stealc transmit the harvested data to command-and-control infrastructure before packaging it into distributable log files.

Check If Your Credentials Were Exposed

HEROIC's breach scanner searches a database exceeding 400 billion compromised records. Enter your email address to determine whether your Zipgo.mx credentials or any other account data has been exposed in known breaches. If a match is found, change your password immediately, revoke any active sessions, and activate two-factor authentication as an additional security layer.