2,174 Plaintext Passwords Dumped in Hotmail Combo 7 Leak

HEROIC analysts have identified a stealer log collection labeled Hotmail Combo 7 that was uploaded to Telegram in June 2026. The dataset contains 2,174 records harvested from compromised devices, including email addresses, plaintext passwords, and associated URLs. The leak was distributed freely on a public Telegram channel, making the stolen credentials accessible to anyone seeking to exploit them.

Although the record count may seem modest compared to larger breaches, each entry represents a real person whose login credentials were captured by malware and can now be used by threat actors worldwide.

Why Plaintext Passwords Make This Leak Immediately Dangerous

Unlike breaches that expose hashed or encrypted passwords, the Hotmail Combo 7 dump contains credentials stored in plaintext. This means attackers do not need to spend time or resources cracking password hashes — every stolen password is ready to use the moment it is downloaded.

Plaintext credentials can be fed directly into automated login tools that test them across hundreds of websites within minutes. If any of the affected users reused their Hotmail password on banking, social media, or work accounts, those accounts are now equally vulnerable.

The window for exploitation is essentially zero. From the instant this file appeared on Telegram, every credential inside it became an active threat.

What Was Exposed in the Hotmail Combo 7 Dump

• Email Addresses — Full email addresses tied to Hotmail and potentially other mail providers, usable for targeted phishing and account takeover attempts.
• Plaintext Passwords — Unencrypted passwords captured directly from browsers or applications by infostealer malware, ready for immediate misuse.
• URLs — The specific website addresses where credentials were entered, revealing which services each victim used and guiding attackers to high-value targets.

Why 2,174 Stolen Credentials Can Cause Widespread Damage

Research consistently shows that over 60% of users reuse passwords across multiple accounts. That means a single set of stolen credentials can unlock far more than one service. Attackers routinely use credential stuffing — automated campaigns that test leaked email-and-password pairs against dozens of popular platforms simultaneously.

Even if only a fraction of these 2,174 accounts are still active, successful logins can cascade into email account takeovers, password resets on linked services, identity theft, and financial fraud. One compromised inbox often serves as the master key to an entire digital life.

The inclusion of URLs in this dataset makes the threat even more precise. Attackers know exactly which services victims frequent, allowing them to prioritize high-value targets like banking portals and corporate logins.

How Stealer Logs Capture Your Credentials Without You Knowing

Infostealer malware is typically distributed through phishing emails, malicious downloads, or cracked software. Once installed on a device, it silently harvests saved passwords from web browsers, email clients, and other applications. Many variants also capture cookies, autofill data, and even screenshots.

The stolen data is packaged into structured log files and sent to command-and-control servers operated by the attacker. These logs are then sold on underground marketplaces or, as in this case, shared freely on Telegram channels where they reach thousands of opportunistic threat actors.

Victims rarely know they have been compromised until their accounts are accessed by someone else. The malware operates in the background, and antivirus software does not always detect newer variants.

Check If Your Credentials Appear in This Leak

If you have ever used a Hotmail account or suspect your credentials may have been harvested by malware, it is important to verify your exposure. HEROIC offers a free breach scanner that searches across more than 400 billion records compiled from known breaches and stealer log distributions.

Enter your email address to find out whether your credentials appear in the Hotmail Combo 7 dump or in any other breach indexed by HEROIC. If your information is found, change the affected passwords immediately and enable two-factor authentication on every account that supports it.