Monster Cloud Free 10: 14,824 US Stealer Log Credentials (Oct 6, 2023)

Monster Cloud Free 10 Extends the Oct 6 Cluster to 16 Confirmed Batches

Monster Cloud Free 10, released October 6, 2023, contributes 14,824 US credentials to what has become the second-largest single-day credential cluster in HEROIC's breach dataset. Free 10's confirmation also reveals that Free 9 (11,402 records) and Free 10 (14,824) form a consecutive pair -- both on Oct 6. Previously, Free 9 appeared isolated within MC's Oct 6 release pattern; Free 10's date confirmation upgrades it to a two-batch consecutive group. MC's 16 confirmed Oct 6 batches now total 197,871 records across isolated releases and multi-batch groupings.

Monster Cloud Free 10 (October 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

Updated Oct 6 Monster Cloud Sequence Map

With Free 10 and Free 21 now confirmed as Oct 6 releases, MC's Oct 6 consecutive sequence map becomes: Free 4-5-6 (trio) + Free 9-10 (pair) + Free 12 (isolated) + Free 17-18-19 (trio) + Free 21 (isolated) + Free 27-28 (pair) + Free 30-31-32 (trio) + Free 33 (isolated, super-large at 22,858). This eight-group structure across 16 batches and 197,871 records reflects a highly organized same-day distribution strategy -- not opportunistic posting, but coordinated, sequentialy-released batches designed to saturate Telegram channels with promotional stealer log samples.

Oct 6 Now Rivals Oct 7

MC's 197,871 Oct 6 records combine with over 256,000 records from 16 non-MC operators for an Oct 6 grand total approching 454,000 -- within striking distance of Oct 7's 462,187. With additional batches still being confirmed, Oct 6 may ultimately match or exceed Oct 7 as the single largest credential distribution event in HEROIC's breach dataset. Free 10's 14,824 records represent roughly 7.5% of MC's Oct 6 total alone, making it a meaningfull individual contributor to this historically significant date cluster.

Check If Your Data Was Exposed

HEROIC's free breach scanner searches across more than 400 billion exposed records including Monster Cloud's Oct 6 batch series. If you used any software or browser on an infected endpoint around October 2023, your credentials may be among MC's 197,871 confirmed Oct 6 records. Scan your email at HEROIC's breach scanner before your accounts are targeted.