Breach Intelligence Report 21 Sep 2026

100 Plaintext Password Combos Surface in New Telegram Combolist

HEROIC
HEROIC Threat Intelligence Team
Email Addresses Plaintext Password Urls
Combolist JAPAN 100 PCS uploaded by a Telegram User
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Records Exposed 100
Source Type Combolist
Origin United States
Password Type plaintext

Email and password pairs do not need to be numerous to be dangerous, they just need to work. HEROIC analysts catalogued a combolist dated 18 Jun 2020 containing 100 records that pair addresses with plaintext passwords and the URLs they were pulled from, a small but fully usable credential set.


Why Paired Credentials Are the Most Usable Kind

A password alone is nearly worthless to an attacker. Paired with the matching email and a URL showing where it works, it becomes a ready login. That pairing is what separates a nuisance leak from one that leads directly to account takeover.


What Was Exposed

  • Email addresses: the username half of every login pair in the file.
  • Plaintext passwords: readable and usable the moment someone opens the file.
  • URLs: point straight to the service each pair unlocks.

Why This Matters for Reused Passwords

Most people do not use a different password for every site. If the password sitting in this file matches one used elsewhere, an attacker can walk straight into other accounts without any extra effort, a technique known as credential stuffing.


How Combolists Circulate

These files are traded and rebuilt from older breach data and scraped credentials, then bundled together by whoever uploads them. A small file like this one often gets folded into larger, more dangerous combolists later.


How Do You Find Out if You Were in This Pair?

The quickest way to find out is to scan your email and check whether your address is tied to this or any other exposure HEROIC has recorded. If it turns up, reset the password on the matching account right away and avoid reusing it anywhere else. Run the same check for your work email, since combolists rarely distinguish between personal and professional accounts, and a shared password can quietly bridge the two.

Breach Breakdown

Domain JAPAN 100 PCS uploaded by a Telegram User
Leaked Data Email Addresses,Plaintext Password,URLs
Password Types plaintext
Date Leaked 21 Sep 2026
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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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