PiratesLogs 461pcs Data Breach: 5,822 Credentials Left Vulnerable

PiratesLogs 461pcs: Second Batch, Wider Net

PiratesLogs ran two stealer log releases on October 18, 2023. The first -- 302pcs -- contained 4,434 US credentials at approximately 14.7 records per file. The 461pcs batch, at 5,822 records across 461 files, is the larger release in file count but delivers a lower per-file density of ~12.6 rec/file. This reduction in density is consistent with a broader endpoint sweep -- more machines targeted with fewer saved credentials per machine on average. For an operator named PiratesLogs, the two-batch strategy on a single day suggests active infrastructure capable of running parallel log agregation across separate campaigns.

PiratesLogs 461pcs (October 2023): Stealer Log Summary

• Records Exposed: 5,822
• 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 18, 2023

Combined PiratesLogs Oct 18 Output: 763 Files, 10,256 Records

Taken together, PiratesLogs released 763 log files and 10,256 plaintext US credentials on October 18, 2023. That combined figure puts PiratesLogs among the mid-tier Oct 18 operators by total volume -- above RedlineLogsGroup (7,976 combined) but well below 10.18 - LOGS_CENTER (28,864) or Monster Cloud's multi-batch total. The consitency of the "pcs" file-count encoding across both batches -- 302pcs and 461pcs -- confirms a single operator running two campaigns and reporting each in terms of its constituent log files rather than records.

The "pcs" Naming Convention and What It Signals

Multiple operators in the Oct 18 dataset use file-count encoding in their batch names: BananaLogs used "count" (499count/633count), RedlineLogsGroup used "logs" (238logs/270logs), and PiratesLogs used "pcs" (302pcs/461pcs). The "pcs" abbreviation -- short for "pieces" -- is common in underground stealer log markets. It signals to buyers exactly how many individual log files they're recieving, which helps them assess the scope and quality of a batch before purchase. A higher pcs count with a lower per-file density typically means a wider geographic spread; a lower pcs count with higher density means more credential-rich endpoints.

Immediate Risk: Plaintext Passwords at Scale

The 5,822 credentials in the 461pcs batch were available to anyone monitoring the distribution channel as of October 18, 2023. Each record consists of an email address, its corresponding plaintext password, and one or more associated URLs. No hashing, no encryption. Account takeover, credential stuffing, and targeted phishing are all directly enabled by this data type.

Check If Your Data Was Exposed

HEROIC's free breach scanner searches more than 400 billion records including stealer log collections from PiratesLogs and other Oct 18 operators. Search your email at HEROIC's breach scanner to find out if your credentials were exposed.