The 4.2K EU Combo Mail Access List Quietly Surfaced on Telegram

HEROIC analysts noticed this combolist in mid-May 2026 after it appeared on Telegram under the label EU Combo Mail Access, with no announcement or fanfare. The file contains 4,184 records pairing email addresses with plaintext passwords and the URLs those logins were tied to. The .EU label suggests a focus on European email accounts, though as with most Telegram combolists, there is no way to verify exactly which providers or countries are represented beyond what the uploader wrote in the filename. Why This Combo List Is Dangerous: The name mail access is the key detail here. Unlike a combolist built for random websites, this one appears specifically curated for email account logins, which are often the master key to everything else a person owns online. With passwords stored in plain text, anyone who picks up this file can try logging into those inboxes immediately. What Was Exposed: - Email addresses - Plaintext passwords - URLs tied to each mail account Why This Matters: Email accounts are used to reset passwords for banking, shopping, and social media. If an attacker gets into one of these 4,184 inboxes, they can often use it to take over other accounts entirely, triggering password resets and locking the real owner out. That makes a mail-access combolist more dangerous, record for record, than a list built around a single low-value website. How Mail Access Combolists Circulate: These lists are typically built from older breaches, phishing pages disguised as email login screens, or malware that captures saved credentials from an infected device. Once compiled, small files like this one are shared quietly on Telegram channels, often without any promotion, since the value comes from working, unreported access rather than publicity. Check If You Are Affected: HEROIC's free breach scanner checks your email against more than 400 billion leaked records, including quiet combolists like this 4,184-record file. Run a free scan to see if your email account shows up in this leak or any other breach in HEROIC's database.