Breach Intelligence Report 22 Mar 2026

US Accounts Dominate Files_17.10_18.21_46’s 2,654,291 Leak

HEROIC
HEROIC Threat Intelligence Team
Email Addresses Plaintext Password Urls
Stealer Logs Files_17.10_18.21_46 uploaded by a Telegram User
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Records Exposed 2,654,291
Source Type Combolist
Origin United States
Password Type plaintext

Tagged with a United States origin, the combolist Files_17.10_18.21_46 carries 2,654,291 stolen credential pairs that surfaced on Telegram in October 2024, another entry in a long running series of leaks tied to the same source.


Why This Is Dangerous

Being flagged as US based data doesn't narrow the danger, it just tells you where most of the affected accounts were registered. Every one of the 2,654,291 entries in Files_17.10_18.21_46 pairs an email address with a plaintext password, meaning American consumers, small business logins, and personal email accounts alike are sitting exposed in one file.


What Was Exposed

  • 2,654,291 email addresses linked to US based accounts
  • Plaintext, unencrypted password values
  • URLs identifying the exact service each credential pair came from

Why This Matters

A regional concentration like this makes the list more valuable to certain attackers, since it can be paired with region specific scams, fake delivery notices, or tax season phishing that already assumes the recipient lives in the United States. That context definately turns a generic credential leak into a more convincing targeted attack.


How a Combolist Gets Labeled by Country

Combolist builders occassionally tag files by country based on the language, currency, or domain extensions found in the source data. A file heavy with dot com addresses and English language sites, like Files_17.10_18.21_46, gets marked as US based, wich has nothing to do with how securely the original site protected the data in the first place.


Check If You Are Affected

Regional tagging or not, the only way to know if you're one of the 2,654,291 people in this file is to check directly. HEROIC's free scanner searches more than 400 billion leaked records worldwide so you don't recieve any nasty surprises later, and shows you right away if your email needs attention.

Breach Breakdown

Domain Files_17.10_18.21_46 uploaded by a Telegram User
Leaked Data Email Addresses,Plaintext Password,URLs
Password Types plaintext
Date Leaked 22 Mar 2026
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Private & Secure No Account Needed 3,664 scanned today
Breach Rank #1,068 by affected users
Impact Score
40
sensitivity + scale + recency
Est. Financial Impact $19.2M fraud, phishing & misuse risk
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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
Password Security

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

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Financial Protection

Monitor credit reports and set up fraud alerts with major credit bureaus

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