The ‘Cloud t117’ Leak: 580,322 Email and Password Pairs Exposed

HEROIC analysts identified a file titled "cloud t117" uploaded to Telegram in July 2026, containing 580,322 email addresses paired with plaintext passwords and associated login URLs. The generic filename gives no indication of a single source company, suggesting the data was compiled from multiple places rather than one breached organization. Why This Is Dangerous: With over half a million plaintext email and password pairs in one file, an attacker can automate testing these credentials against a huge number of websites in a short amount of time, with no cracking or extra effort required. What Was Exposed: The file contains email addresses, plaintext passwords, and the URLs those credentials were tied to, spanning what appears to be a wide mix of services rather than a single platform. Why This Matters: At this scale, this file is exactly the kind of resource used to power large, automated credential stuffing attacks, where bots test stolen logins against banking, email, and shopping sites around the clock. If your password has been reused anywhere, a leak this size significantly raises the odds it gets tried. How a Combolist Leak Like This Works: A combolist compiles login credentials from many different sources, old breaches, phishing pages, and malware-infected computers, into one large file that's easy to search and reuse. Generic names like "cloud t117" are common labeling conventions used by the people who assemble and trade these files, rather than references to any single hacked service. Check If You Are Affected: With more than half a million credentials in circulation from this leak alone, checking your exposure is worth doing today. HEROIC's free breach scanner searches over 400 billion leaked records, including combolists like this one, and gives you an instant, clear answer.