Monster Cloud Free 31: 14,218 US Credentials Exposed in Oct 6 Stealer Log Batch

Monster Cloud Free 31: Completing the Free 30-31-32 Consecutive Oct 6 Trio

Monster Cloud Free 31 released 14,218 US credentials on October 6, 2023 -- the missing link between the previously confirmed Free 30 (8,862) and Free 32 (9,575). With Free 31 confirmed as Oct 6, three consecutive batch numbers (30, 31, 32) are all verified Oct 6 releases. Combined with the Free 27-28 consecutive pair also on Oct 6, Monster Cloud's Oct 6 sequence shows a pattern of clustered consecutive numbers separated by gaps -- suggesting batch uploads may have occurred in distinct sessions.

Monster Cloud Free 31 (October 2023): Stealer Log Summary

• Records Exposed: 14,218
• 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

Oct 6 Cluster: 12 Confirmed Batches, 147,235 Records

With Free 31 and Free 6 both confirmed as Oct 6, the Monster Cloud Oct 6 cluster now stands at 12 confirmed batches totaling 147,235 records: Free 4 (10,387), Free 6 (13,466), Free 9 (11,402), Free 12 (10,475), Free 17 (12,380), Free 18 (10,144), Free 27 (9,524), Free 28 (13,944), Free 30 (8,862), Free 31 (14,218), Free 32 (9,575), Free 33 (22,858). This cluster is now approximately a third the scale of Oct 7's 29-batch, 462,187-record operation.

Consecutive Clusters: What They Reveal About Oct 6 Batch Structure

Monster Cloud's Oct 6 batch numbers show two confirmed consecutive runs: Free 27-28 (pair) and Free 30-31-32 (trio). The gap between them -- Free 29 -- remains unconfirmed. This clustering pattern suggests Monster Cloud may have uploaded batches in sessions during Oct 6, with each session producing adjacent batch numbers. Alternatively, the consecutive gaps may reflect other-date batches not yet indexed, or simply numbering conventeons for simultaneous uploads from different collection runs.

Free 31 as the Second-Largest Oct 6 Batch

At 14,218 records, Monster Cloud Free 31 is the second-largest confirmed Oct 6 MC batch by volume, trailing only Free 33 (22,858). Its position between the smaller Free 30 (8,862) and Free 32 (9,575) makes it a notable outlier within the consecutive trio -- the middle batch that is far larger than its numerically adjacent neighbors. This size irregularity further reinforces the finding that Monster Cloud batch numbers carry no size-order information whatsoever.

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