46,355 Passwords From LOGSYNC 1 Just Surfaced on Telegram

HEROIC analysts identified a stealer log file uploaded to a public Telegram channel on May 11, 2025. The file contained 46,355 records and included plaintext passwords, email addresses, and the URLs of the sites those credentials belong to. Stealer logs like this one are generated by malware running silently on a victims device, harvesting everything it finds before sending it back to whoever controls the infection. This one was made publicly available in a Telegram channel, putting the data within reach of anyone looking for it.

Why This Is Dangerous

Plaintext passwords are the most useful thing a criminal can get from a breach. There is no cracking involved, no guessing, and no technical skill required. Anyone with this file can take an email and password pair, walk straight into a login page, and try it. Because most people reuse the same password across multiple accounts, one stolen credential can unlock email inboxes, banking apps, social media profiles, and workplace tools all at once. The URLs included in this log also tell attackers exactly which services these accounts belong to, removing even the need to guess where to try.

What Was Exposed

The following types of personal and account data were found in the LOGSYNC 1 breach:

• Email Addresses
• Plaintext Passwords
• URLs (the websites and services the credentials are tied to)

Why This Matters

Stealer log data like this feeds directly into credential stuffing attacks, where bots automaticaly test stolen logins across hundreds of sites at once. Even if you have never heard of this particular leak, your email and password may be in it. If those credentials match what you use for your bank, your email provider, or your work systems, your accounts are at sereous risk. Identity theft, unauthorized purchases, and full account takeovers are all common outcomes once this kind of data circulates freely online.

How Stealer Logs Work

A stealer log is created by a type of malware called an infostealer. This software gets onto a device through phishing emails, fake software downloads, or malicious ads. Once installed, it runs quietly in the background and collects saved passwords from browsers, autofill data, active session cookies, and login credentials from desktop apps. It then packages all of that into a log file and sends it back to the attacker. These logs are often sold in bulk on dark web markets or, as in this case, uploaded directly to Telegram channels where other criminals can grab them for free.

Check If You Are Affected

HEROIC has indexed over 400 billion leaked records, including stealer logs like this one. You can search your email address right now using the free HEROIC Identity Monitor to see if your credentials have been exposed. If your information appears, change your passwords immediately and enable two-factor authentication on every account you can. Do not wait to find out the hard way.

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