If You Reuse Passwords, the Spain 12 Leak Should Worry You

HEROIC identified a stealer log collection labeled Spain 12 shared on Telegram in February 2023. This dataset targets Spanish-speaking users and contains 113,341 records captured by infostealer malware. Each entry pairs an email address with a plaintext password and the URL of the service the victim was using at the time their credentials were intercepted by the malware.

Over 113,000 Plaintext Passwords in the Open

The scale of this leak is significant. All 113,341 passwords are stored in plaintext, completely unencrypted and ready for immediate use. Attackers can scan through this dataset and find working credentials in seconds. With over a hundred thousand entries, the statistical likelihood of finding valid, currently active passwords is extremely high, making this one of the more impactful Spain-focused stealer log collections.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (Spanish services and international platforms)

Password Reuse Puts Spanish Users at Cascading Risk

Spanish users frequently maintain accounts on both local platforms and global services. When attackers obtain 113,341 credential pairs, they use credential stuffing to test each one against Spanish banking sites, government portals, email services like Gmail and Outlook, social networks, and e-commerce platforms. Users who reuse their passwords across these services face a cascading risk where a single leaked credential grants attackers access to multiple accounts, each potentially containing sensitive personal and financial information.

Infostealer Malware Behind the Spain 12 Collection

The Spain 12 dataset was compiled from stealer logs generated by infostealer malware running on infected Spanish devices. This malware typically arrives through phishing emails written in Spanish, pirated software, or malicious browser extensions. It silently harvests all stored browser credentials, session cookies, and autofill data before transmitting everything to the attacker. The stolen data is then filtered by geographic indicators and language to create targeted datasets like Spain 12, which are shared on Telegram for other threat actors to exploit.

Check If Your Credentials Were Exposed

With 113,341 records, this leak affects a substantial number of Spanish-speaking users. HEROIC's breach scanner covers more than 400 billion compromised records worldwide. Search your email address to check if your credentials appear in the Spain 12 dataset or any other breach, and change your passwords immediately on any affected services, starting with your email and financial accounts.