How a Telegram Combolist Upload Exposed 9,844 cais.com Logins

What HEROIC Analysts Found On 10 June 2026, HEROIC analysts traced a combolist uploaded to Telegram back to the cais.com email domain. The file contains 9,844 records, each pairing an email address with a plaintext password and a URL showing where the credentials were used. Why This Is Dangerous Because the passwords sit in plaintext, no decryption or cracking is needed. Anyone who grabs this file can immediately try each email and password pair on other websites. If any of the 9,844 people affected reused a password elsewhere, that account is now exposed too. What Was Exposed Email addresses tied to cais.com Plaintext passwords for each account URLs showing where each login was captured Why This Matters Lists like this one are the raw material for credential stuffing attacks, where automated tools test stolen email and password pairs against banking sites, email providers, and social platforms. A single reused password can lead to a full account takeover, opening the door to identity theft and financial fraud for anyone caught up in the leak. How This Combolist Ended Up on Telegram Combolists tied to a specific domain, like this one built around cais.com, typically come from a mix of older breaches, phishing pages, and malware-infected devices rather than a single break-in. Someone compiled the working credentials into one file and uploaded it to a Telegram channel where these lists are traded, making it available to anyone willing to download it. Check If You Are Affected If you have an email address associated with cais.com, it is worth finding out whether your credentials are part of this leak. HEROIC's free breach scanner checks your email against a database of more than 400 billion exposed records, so you can find out quickly and update any passwords you have reused elsewhere.