Monster Cloud Free 35 Stealer Log | 12,904 US Records Exposed

Free 35 and Free 36: A 10,000-Record Gap Between Adjacent Batches

Monster Cloud Free 35 released 12,904 plaintext US credentials on October 7, 2023 -- making it the lowest-numbered confirmed batch from that day's 21-batch operation. What makes Free 35 particularly revealing is its relationship to its immediate successor: Free 36 contains 23,030 records, a difference of more than 10,100 records between consecutive batch numbers. This discontinuity is among the starkest in the Oct 7 series and reinforces a fundamental finding about Monster Cloud's operation: batch numbers are not a proxy for harvest volume, endpoint quality, or any other measurble characteristic of the data.

Monster Cloud Free 35 (October 2023): Stealer Log Summary

• Records Exposed: 12,904
• 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 7, 2023

Mid-Range Tier: Free 35's Place in the Oct 7 Pattern

Free 35's 12,904 records place it firmly within the mid-range tier that characterizes a significant subset of Monster Cloud's October 7 output. Across the 21 confirmed Oct 7 batches, the mid-range group -- broadly defined as 11,000 to 14,000 records -- includes Free 41 (13,280), Free 47 (11,192), Free 51 (12,413), Free 54 (12,018), Free 58 (12,258), Free 62 (12,109), and Free 67 (14,070). Free 35 at 12,904 sits near the midpoint of this group. The clustering of multiple batches within a narrow record-count band suggests these mid-range releases were processed from a common endpoint category or harvest pipeline with relatively consistent output characteristics.

Extending the Oct 7 Series: How Low Does It Go?

Free 35's confirmed status as the lowest-numbered Oct 7 Monster Cloud batch raises a question about the lower bound of that day's release series. Monster Cloud's Oct 8 batches are numbered Free 1 through Free 10, suggesting the batch numbering system does not simply count forward across days. Free 35 as the lowest confirmed Oct 7 batch leaves open whether lower-numbered batches (Free 1-34) were released on different dates, represent a separate channel, or were simply not captured in the dataset analyzed. Each new confirmed batch extends what is known about Monster Cloud's operational scope -- Free 35 pushes the confirmed series edge downward by one more position.

Stealer Log Distribution on Telegram: The Free Batch Model

Monster Cloud's freemium distribution model uses public "Free" batch releases to demonstrate capability and attract buyers for premium credential access. At 12,904 records, Free 35 is not a token sample -- it is a substantive dataset carrying real credential risk for affected users. The Oct 7 operation's 21-batch structure, totaling 358,254 records released in a single day, indicates a highly organized distribution infrastructure. For the individuals whose credentials appeard in Free 35, the batch number and position in Monster Cloud's hierarchy is academic -- the plaintext passwords and associated email addresses carry identical risk regardless of which batch they landed in.

Check If Your Data Was Exposed

HEROIC's free breach scanner indexes more than 400 billion exposed records, including Monster Cloud Free 35 and the complete Oct 7 cluster. If your credentials were harvested by infostealer malware and distributed through Monster Cloud, you deserve to know before those credentials are weaponized. Check your exposure at HEROIC's breach scanner -- it's free and covers the full scope of known breach datasets.