Breach Intelligence Report 21 Sep 2025

Fortuna Private 867logs: 15,262 US Stealer Log Credentials (Oct 6, 2023)

HEROIC
HEROIC Threat Intelligence Team
Email Addresses Plaintext Password Urls
Your email may be in this breach. Check in 5 seconds — free, no signup required.
Scan Email →
Records Exposed 15,262
Source Type Stealer log
Origin Telegram
Password Type plaintext

Fortuna Private 867logs: A Naming Variant Within FortunaPrivate's Oct 6 Operation

The batch named "Fortuna Private 867logs" represents a naming variation worth noting: the space between "Fortuna" and "Private" distinguishes it from the "FortunaPrivate" (no space) convention used in most other batches from this operator. Whether this reflects a different Telegram channel, a different upload tool, or simply a typo in the source metadata, the content is the same -- 15,262 US stealer log credentials from October 6, 2023. With 867 log files in the batch, the per-file yield is 17.6 records/file, significantly higher than the operator's 265logs batch (11.97/file) and indicative of more credential-rich endpoints in this particuler collection.


Fortuna Private 867logs (October 2023): Stealer Log Summary

  • Records Exposed: 15,262
  • Data Types: Email addresses, plaintext passwords, URLs
  • Breach Type: Stealer log -- credentials harvested from malware-infected endpoints, not a direct database breach
  • Password Type: Plaintext -- captured directly from browser sessions and credential stores by infostealer malware
  • Country: United States
  • Date Leaked: October 6, 2023

FortunaPrivate's Five-Batch Oct 6 Footprint

Fortuna Private 867logs is the second-largest of FortunaPrivate's five confirmed Oct 6 batches. Ranked by size: FortunaPrivate 3 (55,009) -- Fortuna Private 867logs (15,262) -- FortunaPrivate1 (4,748) -- FortunaPrivate (2,839) -- FortunaPrivate 265logs (3,174). The combined total is 81,032 records, making FortunaPrivate the second most prolific non-MC operator on Oct 6 after Pubx (96,973). The 867logs batch alone represents roughly 19% of FortunaPrivate's entire Oct 6 output, and its higher per-file yield compared to 265logs suggests a diferent underlying endpoint pool or malware configuration.


Oct 6's Expanding Scale

FortunaPrivate's 81,032 records are part of a much larger multi-operator event. Oct 6, 2023 now has at least 19 confirmed Monster Cloud batches (239,445 records) plus 18 non-MC operators contributing over 274,000 records -- a combined total exceding 514,000 records. This places Oct 6 comfortably above Oct 7's 462,187 as the single largest confirmed date cluster in HEROIC's dataset, with further unconfirmed batches still to be processed. The Fortuna Private 867logs batch, at 15,262 records, is a meaningful contributor to this historically significant event.


Check If Your Data Was Exposed

HEROIC's free breach scanner searches across more than 400 billion exposed records, including Fortuna Private 867logs and all other FortunaPrivate batches from October 6, 2023. If your email was on a compromised US endpoint around that period, your credentials may be in this dataset. Check at HEROIC's breach scanner now.

Breach Breakdown

Domain N/A
Leaked Data Email Addresses,Plaintext Password,URLs
Password Types plaintext
Date Leaked 21 Sep 2025
Check in 5 seconds

15,262 passwords exposed. Is yours one of them?

Enter your email to scan this breach plus 400B+ other leaked records. If you're compromised, we'll show you exactly where and what to change.

All information submitted is Private and Secure. We do not sell or share email addresses. By searching, you agree to HEROIC's Privacy Policy and Terms of Service.

Free forever · No account required · Results in seconds

Private & Secure No Account Needed 3,538 scanned today
Breach Rank #10,381 by affected users
Impact Score
1
sensitivity + scale + recency
Est. Financial Impact $110.4K fraud, phishing & misuse risk
Scan your email Free →
Scan to sign up

Scan to sign up instantly

24/7 Dark Web Monitoring
Instant Breach Alerts
Secure Data Protection
Your Data is at Risk

Your Personal Information is Exposed

We found your data exposed in multiple breaches. This includes:

  • Email addresses
  • Passwords
  • Phone numbers
  • Financial information
Secure My Information Now

Your information is protected by enterprise-grade security

Your Breach Details

Date:
Severity:
Records Exposed:

Your Exposed Information

Your Risk Level

How This Affects You

Full Breach Details

Premium Insights

Unlock Critical Security Information

Create a free account to access:

  • Full Breach Impact Analysis
  • Identity Theft Risk Score
  • Exposed Credentials Details
  • Personalized Security Recommendations
Create Free Account

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

Recommended
Identity Protection

Enable advanced identity monitoring and dark web surveillance