One Telegram Upload. 299 Log Bundles. Logs_31 October Had 120,206 Stolen Records.

HEROIC analysts monitoring Telegram stealer log activity flagged a significant upload on October 31, 2025, labeled "Logs_31 October." The file contained 120,206 records extracted from compromised endpoints, making it one of the larger single-day stealer log releases tracked that month. Each record in the dataset paired an email address with a plaintext password and an associated URL, likely representing the services and API hosts the victim was actively using at the time of compromise. The timing of the upload, right at the end of October, suggests the operator was running an active campaign and releasing logs in batches aligned to collection dates.

Why 120,000 Stolen Plaintext Credentials Is a Serious Threat

A dataset of this size gives attackers significant firepower. With over 120,000 email-password pairs, credential stuffing tools can hammer login portals across banking, healthcare, retail, and corporate systems around the clock. Because the passwords are plaintext, there is zero barrier to use. Attackers do not need to crack or decode anything. The associated URLs in each record also tell them which specific services each victim was using, turning a generic credential list into a precision targeting guide. At this scale, even a 1 percent success rate in credential stuffing translates to over 1,200 compromised accounts.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (API Host Endpoints)

Why This Matters

When over 120,000 sets of credentials hit a public Telegram channel, the downstream effects spread fast. Credential stuffing campaigns powered by this data can result in account takeovers across dozens of platforms simultaneously. Victims face unauthorized bank transfers, fraudulent purchases, and in cases where corporate email credentials are included, potential full-scale network intrusion. Identity theft is a near-certainty for anyone whose email account gets taken over, since a compromised inbox allows attackers to reset passwords on every linked account the victim holds. Financial fraud follows quickly, as attackers look for payment methods stored in accounts like e-commerce profiles or digital wallets. Many victims are completly unaware their credentials have been circulating in stealer logs until they see unexplained charges or recieve account lockout notices from services they still use regularily.

How Telegram Stealer Log Campaigns Work

Modern infostealer campaigns are organized operations, not lone-hacker incidents. Operators deploy malware through networks of compromised websites, fake software downloads, and phishing campaigns. The malware runs silently on a victim's device, harvesting saved passwords, browser session cookies, and login credentials from applications. These individual logs are uploaded to a private server, where the operator aggregates them into dated batches. The date-based naming convention, like "Logs_31 October," is a deliberate organizational choice that makes it easy for buyers to request the most recent data. The completed batch files are then posted to Telegram channels where paying subscribers or free followers can download them directly. Within hours of a release, the credentials inside are already being tested against major websites. The speed of this cycle is what makes Telegram-distributed stealer logs so dangerous, victims have almost no window between compromise and exploitation.

Check If You Are Affected

HEROIC provides a free breach scanner backed by a database of over 400 billion compromised records, giving you the most comprehensive picture available of where your data may have appeared online. The Logs_31 October release and thousands of other stealer log batches like it are indexed in that database. Visit heroic.com to scan your email address for free. If your credentials show up in this release, change the affected password immediately, review your recent account activity across all linked services, and enable multi-factor authentication to prevent further unauthorized access.