Inside HQ Hotmail Combo Neo3690: 7,799 Passwords Harvested

HEROIC's threat intelligence team identified a stealer log collection titled HQ Hotmail Combo Neo3690, shared via Telegram in January 2025. This file contains 7,799 compromised records targeting Hotmail users, with each entry exposing email addresses, plaintext passwords, and the URLs where those credentials were entered. The data is now freely available to cybercriminals.

Plaintext Passwords: No Cracking Required

Every password in the HQ Hotmail Combo Neo3690 dump appears in plaintext, meaning it can be read and used instantly. There is no encryption layer to slow down an attacker. Anyone with access to this file can log into affected accounts within seconds, making this one of the most immediately dangerous forms of credential exposure.

What Was Exposed

• Email addresses tied to Hotmail and associated Microsoft accounts
• Plaintext passwords stored without any encryption or hashing
• URLs revealing which websites and services were compromised

Credential Stuffing and the Reuse Problem

Attackers take credential pairs from dumps like HQ Hotmail Combo Neo3690 and run them through automated credential stuffing tools. These tools attempt logins across thousands of websites simultaneously. Because many people use the same password for their email, banking, and shopping accounts, a single leaked Hotmail password can give criminals access to an entire digital life. The result is often unauthorized purchases, drained accounts, and stolen identities.

Understanding Infostealer Malware Behind These Logs

Stealer logs are generated by infostealer malware such as RedLine, Lumma, or Meta Stealer. These malicious programs infiltrate devices when users click phishing links, download cracked software, or open infected email attachments. Once running, the malware silently harvests saved passwords from browsers, captures keystrokes, and logs every website visited. The stolen data is compiled into structured log files and distributed through underground markets and messaging channels.

Check If Your Credentials Were Exposed

Do not wait to find out the hard way that your Hotmail credentials are in this dump. Use HEROIC's breach scanner, which indexes over 400 billion compromised records from thousands of breaches and stealer log collections. Search your email address to discover if your credentials have been exposed, then immediately update your passwords and activate multi-factor authentication on every account.