The Telegram Stealer Log Leak Could Unlock Your Bank, Email, and Social Media

HEROIC cybersecurity analysts identified a large stealer log file uploaded to Telegram on June 22, 2023. The file exposed 7,256 records, each containing an email address, a plaintext password, and the URL of the corresponding account. With more than seven thousand complete, ready-to-use credential sets circulating freely on Telegram, this log is one of the more substantial stealer log exposures tracked by HEROIC analysts from that period -- and the threat it represents has not diminished with time.

Why This Telegram Stealer Log Leak Is Dangerous

The combination of scale and data completeness makes this log particularly threatening. Each of the 7,256 records is a fully packaged attack kit: an email, a password, and the target site, all in plain text with no further work required. Logs of this size distributed freely via Telegram reach a very large audience of threat actors simultaneously. The more people who have access to a credential file, the greater the number of account takeover attempts that follow in a short window of time.

What Was Exposed in This Telegram Stealer Log

• Email addresses
• Plaintext passwords (readable without any decryption)
• URLs showing which accounts and platforms were targeted

Why This Matters

Stealer logs with plaintext passwords enable a chained account takeover. An attacker uses the exposed email and password to access the directly listed account, then pivots to other services where the same password was reused. A single exposed login can cascade into unauthorized access to a bank account, an email inbox used to reset other passwords, social media profiles, and online shopping accounts. Each successful takeover can open additional doors, meaning one record in a file like this can cause harm far beyond the single account it was stolen from.

How Stealer Logs Like This Telegram Upload Work

Information-stealing malware enters a device through a deceptive download, a phishing email, or a malicious link. Once installed, it operates in the background and silently captures every username and password the user types or auto-fills in their browser. Those credentials accumulate in a log file that is automatically sent to the attacker. The attacker then distributes the file -- often to Telegram channels where it is shared with hundreds or thousands of other threat actors at once. Victims have no warning and typically only discover the compromise after accounts have already been accessed.

Check If You Are Affected

HEROIC has added this Telegram stealer log to our breach database, which now covers more than 400 billion exposed records. Search your email address now to find out if your credentials appeared in this file or any other known breach. If you find a match, change the exposed password right away and update it on every other service where you used the same credentials to prevent chained account takeovers.