Breach Intelligence Report 04 Apr 2026

The 334 Telegram Stealer Log Holds More Logins Than a Mid-Size College Has Students

HEROIC
HEROIC Threat Intelligence Team
Email Addresses Plaintext Password Urls
Stealer Logs 334 uploaded by a Telegram User
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Records Exposed 6,534
Source Type Stealer log
Origin United States
Password Type plaintext

HEROIC threat researchers have identified 6,534 records inside the breach known as 334 uploaded by a Telegram User, a stealer log that first appeared on March 6, 2023. The file contains email addresses, plaintext passwords, and the login URLs where each credential was being used, all harvested by infostealer malware and distributed in a Telegram channel.


Why the 334 Telegram Stealer Log Is Dangerous

To put the scope in perspective, 6,534 compromised identities is larger than the undergraduate population of many liberal arts colleges in the United States. Every one of those records is a live, plaintext credential paired with the exact URL it unlocks, which makes this log significantly more dangerous than a hashed database leak of the same size.


What Was Exposed in the 334 Telegram Dump

  • 6,534 email addresses pulled from infected browser profiles
  • Plaintext passwords saved in credential stores at the time of infection
  • Login URLs that reveal the exact service each password unlocks
  • Endpoint and API host identifiers from the victim machines

Why This Matters for Exposed Accounts

Credential stuffing tools can iterate through a list of 6,534 verified logins in minutes. Because each record in the 334 log came with the login URL attached, attackers do not have to guess which service to target. Victims whose passwords appear in this dump face immediate risk of email takeover, online banking fraud, cryptocurrency theft, and, for anyone who reused a work password, a direct path into corporate SaaS and VPN accounts.


How a Stealer Log Like the 334 Dump Works

Infostealer malware families such as RedLine, Vidar, and Raccoon spread through cracked software, fake installers, and malicious browser extensions. Once a victim runs the payload, the malware harvests saved browser passwords, autofill data, cookies, and crypto wallets, then transmits the package to its operator. Operators bundle those harvests into numbered logs and post them in Telegram channels, which is exactly how the 334 collection reached the broader criminal market.


Check If You Are Affected

HEROIC's breach intelligence platform indexes more than 400 billion compromised records, including stealer logs like the 334 Telegram dump. Run a free scan to see whether your email address or any of your passwords are exposed, then rotate credentials and enable multifactor authentication wherever possible.

Breach Breakdown

Domain 334 uploaded by a Telegram User
Leaked Data Email Addresses,Plaintext Password,URLs
Password Types plaintext
Date Leaked 04 Apr 2026
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Identity Theft Risk Score

Risk Score: 8.7/10 - Critical

Data Exposure Analysis

Passwords Critical
Financial High
Personal Medium
Social High
Security Critical

Breach Timeline Analysis

March 2024 Multiple credentials exposed in recent data breach
January 2024 Password found in dark web marketplace
December 2023 Personal information leaked in major security incident

Security Recommendations

High Priority
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Critical: Change compromised passwords immediately and enable 2FA on all accounts

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