One Telegram Upload, 37,564 Passwords: The HQ Mix Combo Neo3690 Leak

HEROIC analysts traced a combolist called HQ Mix Combo Neo3690 back to January 2025, when it was uploaded to Telegram by an individual user. The file contains 37,564 records pairing email addresses with plaintext passwords and the URLs each login was used on. Why is this dangerous? A file labeled 'HQ,' or high quality, typically means the credentials inside have been checked and are more likely to still work, which makes this list more dangerous than a random, unverified dump. With 37,564 plaintext logins in hand, an attacker can move straight to testing accounts without any extra cracking step. Here is what was exposed in the HQ Mix Combo Neo3690 leak: email addresses, plaintext passwords, and associated URLs. Why this matters: Combolists marketed as high quality tend to circulate faster and wider than unverified ones, since other criminals trust the labeling and reuse the file in their own credential-stuffing attacks. Stolen credentials like these rarely stay in one place. Attackers feed lists like this into automated tools that test each email and password pair against banking sites, email providers, and online retailers, a technique known as credential stuffing. When a password is reused, one exposed account can lead directly to account takeover, identity theft, or financial fraud on completely unrelated services. How the HQ Mix Combo Neo3690 List Was Assembled: A combolist like this is built by pulling email and password pairs from multiple breaches or malware infections, then merging and deduplicating them into one file. The 'Mix Combo' naming suggests this particular file draws from several different sources rather than a single hacked website, which is common for lists traded on Telegram. Check If Your Credentials Are in the Neo3690 Combo List: You do not have to wait to find out if your information is part of a leak like this one. HEROIC's free breach scanner checks your email address against a database of more than 400 billion exposed records, including combolists and stealer logs like this one, and tells you immediately if your credentials have shown up in a known breach. If you find a match, change that password right away, and avoid reusing it anywhere else.