Breach Intelligence Report 22 Mar 2026

US Accounts Exposed as 3,111,519-Record Combolist Surfaces

HEROIC
HEROIC Threat Intelligence Team
Email Addresses Plaintext Password Urls
Stealer Logs Files_17.10_18.21_79 uploaded by a Telegram User
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Records Exposed 3,111,519
Source Type Combolist
Origin United States
Password Type plaintext

A combolist called "Files_17.10_18.21_79" surfaced on Telegram on October 10, 2024, carrying 3,111,519 credential pairs tied overwhelmingly to accounts based in the United States.

Why This Is Dangerous

When a leak concentrates heavily on one country, it becomes especially attractive to regional fraud operations that specialize in exploiting US banking systems, retail platforms, and tax related services, all of which rely on the same kinds of login credentials found in this file.

What Was Exposed

  • 3.1 million email and username combinations
  • Plaintext passwords stored without any protection
  • URLs identifying which US-facing services each login unlocks

Why This Matters

US based accounts are frequently targeted because of the value tied to them, credit accounts, retirement platforms, and major retailers all draw more attacker attention than smaller regional targets. If your account falls into this category, that attention lands squarely on you.

How US-Focused Combolists Get Assembled

These files are often built by pulling breach data specifically from services popular in the United States, then filtering out international entries to create a more valuable, targeted product. That filtering process makes the combolist more efficient for criminals who specifically want to target US financial systems, garunteeing higher success rates than an unfiltered global list would offer.

Check If You Are Affected

HEROIC has indexed more than 400 billion leaked records from breaches all over the world, including US heavy files like this one. Run a free scan of your email to find out imediately if you're one of the 3,111,519 people caught up in this specific leak.

Breach Breakdown

Domain Files_17.10_18.21_79 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 3,451 scanned today
Breach Rank #955 by affected users
Impact Score
40
sensitivity + scale + recency
Est. Financial Impact $22.5M 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

Important
Financial Protection

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

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Identity Protection

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