Breach Intelligence Report 22 Mar 2026

Imagine 3.4 Million Passwords Dumped in Files_17.10_18.21_34

HEROIC
HEROIC Threat Intelligence Team
Email Addresses Plaintext Password Urls
Stealer Logs Files_17.10_18.21_34 uploaded by a Telegram User
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Records Exposed 3,437,873
Source Type Combolist
Origin United States
Password Type plaintext

Picture a spreadsheet with 3,437,873 rows, each one a working email and password combination, all bundled into a single file called Files_17.10_18.21_34 and uploaded to Telegram back on October 10, 2024.

Why This Is Dangerous

This isn't a single company admitting they got hacked, it's a combolist, meaning someone took credentials scraped from many different sources and merged them into one giant, searchable file. With 3,437,873 entries inside Files_17.10_18.21_34, the sheer scale makes it a favorite tool for automated attacks that try stolen logins against hundreds of other websites at once.


What Was Exposed

  • Millions of email addresses collected from prior leaks
  • Plaintext passwords paired directly with each email
  • URLs showing which services the credentials were originally used on

Why This Matters

A file this size is neccessary fuel for what's called credential stuffing, where bots automatically try each email and password pair across banking sites, streaming services, and email providers hoping people reused the same password more than once. If you've ever reused a password anywhere, a combolist like this one is exactly how that habit gets exploited.


How Combolists Get Built

Combolists don't come from one single hack. Instead, criminals pull together data from older breaches, stealer logs, and phishing campaigns, then clean and merge it all into a single organized file. Files_17.10_18.21_34 likely represents months of this kind of quiet aggregation work before it was ever uploaded for others to download.


Check If You Are Affected

With more than 3.4 million records in this one file alone, the odds that your information is included are higher then you'd like to think. HEROIC's free scanner searches across a combined total of over 400 billion leaked records, giving you a direct answer about whether Files_17.10_18.21_34 or any other leak includes your accounts.

Breach Breakdown

Domain Files_17.10_18.21_34 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 #901 by affected users
Impact Score
40
sensitivity + scale + recency
Est. Financial Impact $24.9M fraud, phishing & misuse risk
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  • Passwords
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  • Financial information
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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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