Breach Intelligence Report 22 Mar 2026

Quietly, Files_17.10_18.21_49 Leaked 3,858,697 Passwords Online

HEROIC
HEROIC Threat Intelligence Team
Email Addresses Plaintext Password Urls
Stealer Logs Files_17.10_18.21_49 uploaded by a Telegram User
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Records Exposed 3,858,697
Source Type Combolist
Origin United States
Password Type plaintext

No press release, no warning, just a quiet Telegram post in October 2024 introducing Files_17.10_18.21_49, a combolist carrying 3,858,697 stolen email and password pairs into circulation.


Why This Is Dangerous

The quiet way these leaks surface is part of what makes them dangerous. There's no news coverage forcing companies to react or users to change passwords, so Files_17.10_18.21_49 can sit and spread for a long time before most of the 3,858,697 affected people ever hear about it. Meanwhile, every password in the file remains in plaintext and fully usable.


What Was Exposed

  • 3,858,697 email addresses paired with plaintext passwords
  • Passwords stored with no encryption or protection
  • URLs showing which platform each credential pair belongs to

Why This Matters

Silence isn't safety. Just because Files_17.10_18.21_49 didn't make headlines doesn't mean it's any less dangerous than a breach that did. If anything, quiet leaks like this one can be more damaging, since fewer people recieve any warning at all that their information was involved.


How These Leaks Stay Under the Radar

Combolists like this one are built from smaller breaches and stealer logs that individually never made news either. Whoever compiles the file merges the data, strips duplicates, and posts it under a generic name like Files_17.10_18.21_49, wich helps it blend into the constant stream of similar uploads on Telegram without drawing outside attention.


Check If You Are Affected

You shouldn't have to wait for a headline to find out you're at risk. HEROIC's free scanner checks your email against more than 400 billion leaked records, including quiet leaks like this one, and will definately tell you if a password needs changing.

Breach Breakdown

Domain Files_17.10_18.21_49 uploaded by a Telegram User
Leaked Data Email Addresses,Plaintext Password,URLs
Password Types plaintext
Date Leaked 22 Mar 2026
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Breach Rank #N/A by affected users
Impact Score
40
sensitivity + scale + recency
Est. Financial Impact $27.9M 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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