The Mansory 9 Dump: 1.2 Million Stolen Login Credentials Hit the Dark Web

HEROIC analysts identified a stealer log file in May 2026 that was uploaded to a public Telegram channel by an anonymous user operating under the handle "mansory 9." The file contained 1,269,369 records harvested from infected devices, each entry pairing an email address with a plaintext password and the URL of the site where those credentials were used. The data circulated freely in private Telegram groups before HEROIC's dark web monitoring systems flagged it and added it to the breach database.

Why This Stealer Log Is More Dangerous Than a Typical Breach

Most data breaches expose credentials from a single company. Stealer logs are diffrent. Because the data comes from infected devices, each record shows exactly which website the victim was visiting and what password they typed. That means an attacker does not have to guess where the credential works. They already know the URL. With over 1.2 million records in this single upload, cybercriminals can run automated login attempts across banking portals, email providers, and e-commerce sites within minutes of downloading the file. Plaintext passwords make this even worse. There is no hashing to crack, no extra step. The password is right there, ready to use.

What the Mansory 9 Telegram Upload Exposed

Each record in this stealer log file included the following data points pulled directly from compromised endpoints:

• Email addresses tied to real user accounts
• Plaintext passwords exactly as the user typed them
• URLs identifying the specific website where the credentials were used

The combination of all three fields in a single record is what security researchers call a "credential triplet." It is the most actionable form of stolen data available on the dark web becuase nothing needs to be decrypted or cracked before it can be weaponized.

Why This Matters for Account Security

Stealer log data like this feeds directly into credential stuffing attacks. Here is how that plays out for real people:

• Attackers buy or download the file, then feed it into automated tools that try each email and password combination at dozens of websites simultaneously.
• If you reuse passwords across sites, a single compromised account can unlock your email, your bank, your social media, and your shopping accounts all at once.
• Even if you do not recognize the specific URL in the log, your email address may appear across multiple entries from different infections, meaning your credentials could be spread across several stealer log compilations.
• Plaintext passwords also allow attackers to identify your password patterns, making it easier to guess slightly altered passwords on other platforms.

The downstream risks include account takeover, identitty theft, unauthorized purchases, and SIM swapping attacks that begin with an email account compromise.

How Stealer Log Malware Works

Stealer logs do not come from a single hacked company. They come from malware installed on individual computers and phones. Here is the typical chain of events:

1. A victim downloads what looks like a legitimate app, cracked software, game mod, or browser extension. Hidden inside is an infostealer program such as Redline, Raccoon, or Vidar.
2. Once installed, the malware silently copies everything stored in the browser: saved passwords, session cookies, autofill data, and a log of recent URLs visited.
3. All of that data is sent to a command-and-control server controlled by the attacker.
4. The attacker compiles records from thousands of infections into a single log file and either sells it on dark web markets or uploads it to Telegram channels to build reputation in underground communities.

The mansory 9 upload follows this exact pattern. The 1.26 million records represent real people whose devices were silently compromised, often without any visible symptoms.

Check If Your Credentials Appeared in This Breach

HEROIC's free breach scanner searches across more than 400 billion records, including stealer logs, combolists, and database dumps like this one. If your email address appeared in the mansory 9 Telegram upload or any other known breach, the scanner will tell you exactly what was exposed and when.

You can search your email address at heroic.com. The search is free, takes under ten seconds, and requires no account creation. If your credentials are in the database, the best immediate steps are to change the affected passwords, enable two-factor authentication on the impacted accounts, and stop reusing the same password across multiple sites.