Cuba Corp-Others-Pro Mails Test Sample: 1,061 Credentials Leaked

In February 2026, HEROIC analysts identified a combolist titled "CUBA CORP-OTHERS-PRO MAILS TEST SAMPLE" uploaded to a Telegram channel by an anonymous user. The file contained 1,061 records pairing email addresses with plaintext passwords and associated URLs. Why the Cuba Corp Mails Test Sample Combolist Is Dangerous: despite the word "sample" in its name, this file contains real, readable email and password combinations, meaning it functions exactly like any other working combolist an attacker could use immediately. What Was Exposed: email addresses, plaintext passwords, and the URLs tied to each login. Why This Matters: with 1,061 credentials in this file, anyone who reused their password on another site faces a real risk of account takeover. Attackers often use files labeled as samples or tests to demonstrate a larger stolen dataset is legitimate before selling or trading the full collection. How a Combolist Works: a combolist compiles email or username and password pairs, often gathered from older breaches, phishing pages, or malware infections, into one file that criminals run through automated tools to test logins across many websites at once. This file follows that structure, bundling 1,061 email and password combinations with the URLs they were tied to. Check If You Are Affected: HEROIC's free breach scanner checks your email against more than 400 billion leaked records. Run a free check to see if your credentials appear in this or any other exposure.