Breach Intelligence Report 19 Sep 2025

AuroraLogsTeam 231count: 11,403 US Records From the March 20 Companion Batch

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Email Addresses Plaintext Password Urls
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Records Exposed 11,403
Source Type Stealer log
Origin Telegram
Password Type plaintext

AuroraLogsTeam 231count: The Smaller Half of the March 20 Dual Release

When AuroraLogsTeam released two batches on March 20, 2025, the 726count with 46,905 records got the most attention. But the 231count batch released alongside it was an independent collection of 231 infected US devices contributing 11,403 additional records to the day's total. The two batches almost certainly came from seperatly managed harvesting pipelines -- each with its own device aquisition funnel and credential extraction process -- which is why they arrived as distinct releases rather than a single consolidated dump. The 231count's 49 credentials per device average is the lowest in the documented AuroraLogsTeam series, but that doesn't diminish the revelant risk: every credential was plaintext and immediately exploitable.


AuroraLogsTeam 231count (March 2025): Breach Summary

  • Records Exposed: 11,403
  • Data Types: Email addresses, plaintext passwords, endpoint URLs, API host data
  • Breach Type: Stealer log
  • Device Count (PCS): 231 infected devices
  • Password Type: Plaintext -- directly usable with no cracking required
  • Country: United States
  • Date Leaked: March 20, 2025

Low Density, High Risk: Why 49 Credentials Per Device Still Matters

A per-device yield of 49 credentials is the lowest in the AuroraLogsTeam documented series. For comparison, the 367count batch from March 17 averaged approximately 100 credentials per device. Lower density batches typically reflect shorter malware dwell times, lighter device use patterns, or targeting of machines with fewer saved browser credentials. However, density is a relative metric: even 49 credentials per device represents 49 distinct account accesses, each paired with the specific endpoint URL the credential was associated with. In credential stuffing operations, even a single valid credential set per device is operationally useful. The 231count batch, despite its low density, provided 11,403 ready-to-use credential pairs to anyone with access to the Telegram release.


The March 20 Combined Impact: 726count + 231count Together

Adding the two March 20 batches together, AuroraLogsTeam released 58,308 US records from 957 infected devices in a single day. This combined volume exceeds the output of most individual AlphaFreeLogs batches by a factor of two or more, and demonstrates why AuroraLogsTeam represented a fundamentally larger-scale operation. The dual-drop structure -- releasing two pipeline outputs simultaneously -- maximized the single-day impact while preserving the traceability of each pipeline's independent yield. The March 20 dual release set the stage for similar dual-drops on March 25, and the triple-drop that AuroraLogsTeam had already executed three days earlier on March 17.


Endpoint URL Data: The Operational Advantage Over Simple Password Lists

The inclusion of endpoint URL data in the 231count batch is what makes stealer log datasets categorically more dangerous than simple password dumps. A stolen password list tells an attacker "this person uses this password." A stealer log credential record tells an attacker "this person uses this password on this specific URL." The 11,403 records in the 231count dataset aren't just a collection of passwords -- they are a mapped attack manifest, pairing each credential with the exact service it was used to authenticate to at the time of device compromise. This precision makes the data far more actionable for targeted account takeover campaigns.


Check If Your Data Was Exposed

HEROIC's free breach scanner searches across more than 400 billion exposed records to check whether your credentials appear in the AuroraLogsTeam 231count release or any related stealer log. Even in the smaller companion batches, your data may be in active circulation since March 2025. Run a free search at HEROIC.com today.

Breach Breakdown

Domain N/A
Leaked Data Email Addresses,Plaintext Password,URLs
Password Types plaintext
Date Leaked 19 Sep 2025
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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

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