Breach Intelligence Report 22 Mar 2026

US Accounts Fill Files_17.10_18.21_2: 3,056,440 Exposed

HEROIC
HEROIC Threat Intelligence Team
Email Addresses Plaintext Password Urls
Stealer Logs Files_17.10_18.21_2 uploaded by a Telegram User
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Records Exposed 3,056,440
Source Type Combolist
Origin United States
Password Type plaintext

Files_17.10_18.21_2 is the third and final entry in this particular combolist series, uploaded to Telegram on 10-Oct-2024 with 3,056,440 records tied largely to US-based accounts.


Why This Is Dangerous

A combolist this size gives attackers millions of chances to find a working login. Every email and password pair inside is ready to be fed into automated tools without any extra steps.


What Was Exposed

  • Email or username entries for millions of US accounts
  • Passwords listed in plaintext
  • URLs indicating where each credential was previously used

Why This Matters

Many people never relize that being part of one older breach can mean showing up again years later inside a combolist like this one. It becomes neccessary to treat any historical exposure as an ongoing risk, not a one-time event.


How Combolists Work

Rather than a single point of failure, a combolist like Files_17.10_18.21_2 pulls from multiple past breaches, cleaning and merging username and password pairs into one enormous file built specifically for automated login attempts across many sites at once.


Check If You Are Affected

With over 3 million records in this file alone, checking your exposure matters. HEROIC's free scanner covers more than 400 billion leaked records in total, so see where you stand today.

Breach Breakdown

Domain Files_17.10_18.21_2 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 3,257 scanned today
Breach Rank #975 by affected users
Impact Score
40
sensitivity + scale + recency
Est. Financial Impact $22.1M 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

Recommended
Identity Protection

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