Klaus_cloud_public's Second Strike: 528logs and 28.1 Records Per File

Klaus_cloud_public's 528logs release on October 6, 2023 is the operator's second confirmed dataset from that day -- following the earlier 351logs batch (10,350 records at 29.5/file). Together they push Klaus_cloud_public's Oct 6 total to 25,174 records, making it the fourth-largest individual operator on the day by combined volume. What's really notable about Klaus_cloud_public is consistency: both batches clock in at near-identical per-file yields (29.5 and 28.1 respectively), a pattern that suggests a stable, high-quality source of infected endpoints rather than opportunistic collection.

Klaus_cloud_public 528logs (Oct 6, 2023): Stealer Log Summary

  • Records Exposed: 14,824
  • 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

Per-File Yield: Klaus_cloud_public vs. the Oct 6 Operator Field

Among all confirmed Oct 6 operators, Klaus_cloud_public 351logs holds the day's highest per-file yield at 29.5 records/file. The 528logs batch (28.1/file) sits just below -- still comfortably ahead of Usmancloud 733logs (28.0/file), BananaLogs 495count (18.5/file), and the SunCloudPubl batches. At the bottom of the range sits prdscloud 762logs (2.2/file), whose anomalous yield stands in stark contrast to prdscloud's other two Oct 6 batches (25.4/file and 26.4/file). Klaus_cloud_public's consistency across two batches is exceptionally unusual in this environment.

Klaus_cloud_public in the Oct 6 Hierarchy

Ranked by single-day volume, Klaus_cloud_public's 25,174 combined records place it fourth among Oct 6 operators, trailing only Monster Cloud (355,244, now 25 confirmed batches), Pubx (160,572 across two batches), and FortunaPrivate 3 (55,009). Usmancloud 733logs (20,522) and TG hulk_logs (11,981) follow Klaus in the rankings. The Oct 6 cluster continues to expand as new batches are confirmed -- the grand total now exceeds 728,000 exposed US records, surpassing the previously cited 660,000 figure as additional MC batches have been confirmed.

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Breach Breakdown

  • Domain: N/A
  • Leaked Data: Email Addresses, Plaintext Passwords, URLs
  • Password Types: plaintext
  • Date Leaked: 22 Sep 2025

Your Personal Information is Exposed

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

  • Email addresses
  • Passwords
  • Phone numbers
  • Financial information

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Your Breach Details

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Your Risk Level

How This Affects You

Full Breach Details

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

Your information is still at risk. Take action now to protect yourself.