ATM_LOGS: 20,417 U.S. Credentials — The Largest Batch Identified

20,417 Records: The Largest ATM_LOGS Batch HEROIC Has Identified

Of all the ATM_LOGS uploads documented in HEROIC's breach database, the 20,417-record batch stands out for its scale. Posted to Telegram on January 26, 2025 — the same day as several smaller companion uploads — this package represents the single largest known distribution from the ATM_LOGS channel. It contains email addresses, plaintext passwords, and target login URLs covering thousands of U.S. accounts.

ATM_LOGS Breach — 20,417 Records

• Records Exposed: 20,417 credential sets
• Data Types: Email addresses, plaintext passwords, target login URLs
• Breach Classification: Infostealer malware log
• Region: United States
• Upload Date: January 26, 2025
• Source Channel: ATM_LOGS (Telegram)

Scale Matters — But So Does Precision

A 20,000-record stealer log is significant in absolute terms, but what makes infostealer logs particulary effective isn't raw volume — it's precision. Unlike database breaches where attackers get email addresses without associated passwords, or password hashes that require cracking, stealer logs deliver email, plaintext password, and target URL as a matched set. An attacker doesn't need to guess which website a password belongs to. The URL is already there.

This precision means even a small stealer log can cause substancial damage. A 20,000-record file like this one gives attackers 20,000 complete login kits — email, password, and destination — ready to deploy immediately against the exact services the credentials belong to.

January 2025: A High-Volume Month for ATM_LOGS

HEROIC's analysis of ATM_LOGS Telegram activity shows that January 26, 2025 was a particularly active day for this distribution channel. Multiple batches were uploaded in a single day, with this 20,417-record package being the largest. The cumulative record count across all identified ATM_LOGS uploads from this single date numbers in the tens of thousands — suggesting either a large-scale malware campaign conclusion or a deliberate distribution event timed for maximum impact among Telegram subscribers.

For individuals who may have been infected by infostealer malware in late 2024, the timing of this upload is concerning. Credentials captured in the months before January 2025 would likely be fresh enough to still be valid — and this batch puts those credentials in the hands of anyone following the ATM_LOGS channel.

Check Your Email Against This Breach

HEROIC's free breach scanner covers more than 400 billion records, including this large ATM_LOGS upload and all other identified batches from the same channel. Scan your email for free to find out if your credentials are in circulation — and if they are, learn exactly what was exposed so you can take action immediatly.