Breach Intelligence Report 18 Mar 2026

US Users Dominate the 8,771,096-Record Segacloud Combolist Leak

HEROIC
HEROIC Threat Intelligence Team
Email Addresses Plaintext Password Urls
Stealer Logs 26.581.027 url login pass SEGACLOUD uploaded by a Telegram User
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Records Exposed 8,771,096
Source Type Combolist
Origin United States
Password Type plaintext

Labeled "26.581.027 url login pass SEGACLOUD," this combolist uploaded in September 2024 contains 8,771,096 records, and the site_country data attached to it points overwhelmingly to United States based accounts, making this one of the larger US-centric leaks tied to the broader Segacloud series.


Why This Is Dangerous

When a leak concentrates heavily on one country, it often becomes a preferred target list for attackers running region specific fraud schemes, since matching a stolen login to a US billing address or bank makes the data more imediately useful than a scattered international mix.


What Was Exposed

  • Nearly nine million email or username entries
  • Corresponding plaintext passwords for each entry
  • URLs marking which site each login pair was captured from

Why This Matters

A file this size isn't a seperate, isolated event, it's part of a pattern of Segacloud named leaks that have surfaced repeatedly, each adding millions more records to what's already circulating. If you're in the US and haven't checked your credentials against known leaks recently, this is a good reason to start.


How Combolists Work

This combolist was almost certainly assembled from multiple smaller stealer log batches, sorted and merged by URL, username, and password into one massive, easily searchable file. That format makes it simple for someone to filter just the US based entries and target them specifically.


Check If You Are Affected

With millions of US accounts potentially involved, checking your own status only takes a moment. HEROIC's free scanner searches through more than 400 billion leaked records worldwide, including large combolists like this Segacloud file, to confirm whether your login was part of it.

Breach Breakdown

Domain 26.581.027 url login pass SEGACLOUD uploaded by a Telegram User
Leaked Data Email Addresses,Plaintext Password,URLs
Password Types plaintext
Date Leaked 18 Mar 2026
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Breach Rank #N/A by affected users
Impact Score
40
sensitivity + scale + recency
Est. Financial Impact $63.5M 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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