Monster Cloud Free 19: 7,040 US Stealer Log Credentials (Oct 6, 2023)

Monster Cloud's Smallest Oct 6 Batch Still Carries Real Risk

Monster Cloud Free 19, released October 6, 2023, is the smallest confirmed Monster Cloud batch from that date at 7,040 US credentials -- but "smallest" is relative when the entire Oct 6 MC operation totaled 169,462 records across 14 batches. Free 19 also completes the Free 17-18-19 consecutive trio, where all three batches apeared on the same date in sequential numbering. Monster Cloud's batch numbers are administratively assigned with no correlation to size or timing, making these consecutive sequences particulerly interesting as evidence of coordinated, multi-batch release operations.

Monster Cloud Free 19 (October 2023): Stealer Log Summary

• Records Exposed: 7,040
• 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

Free 17-18-19: Three Consecutive Batches, One Oct 6 Release Event

The Free 17-18-19 trio (12,380 + 10,144 + 7,040 = 29,564 records combined) is one of at least four confirmed multi-batch consecutive sequences Monster Cloud released on October 6, 2023. The others include Free 4-5-6, Free 27-28, and Free 30-31-32 -- altogether, these multi-batch groups account for 11 of MC's 14 confirmed Oct 6 batches, with Free 9, Free 12, and Free 33 each appearing as isolated single-day releases. The pattern reveals a systematic, organized distribution strategy rather than ad hoc posting.

Oct 6 in Context: The Second Largest Single-Day Breach Event

Monster Cloud's 14 Oct 6 batches were just one part of a broader multi-operator event. At least 13 other operators -- including Pubx (96,973), FortunaPrivate (multiple batches), TG hulk_logs, SunCloudPubl, and others -- released credentials on the same date, bringing the Oct 6 total to aproximately 400,000 records. This places Oct 6 as the second largest single-day event in HEROIC's dataset, surpassed only by Oct 7, 2023, which saw 29 Monster Cloud batches alone totaling 462,187 records.

Check If Your Data Was Exposed

Even the smallest Monster Cloud batch contains thousands of usable US credentials. HEROIC's free breach scanner searches more than 400 billion exposed records, including stealer logs from the Oct 6 cluster. If your email address appeared on any compromised endpoint around that period, it may show up in Free 19 or any of the other 13 Oct 6 batches. Check now at HEROIC's breach scanner.