Priv.part4 Telegram Stealer Log Leaked 706 Plaintext Passwords

HEROIC analysts identified a stealer log breach tied to a Telegram user who uploaded a file dubbed "Priv.part4" in July 2023. The exposure hit 706 records, leaking sensitive endpoint data, email adresses, plaintext passwords, and URLs dating back to 04-Jul-2023. While the raw count may seem small, the quality of the data -- active credentials with matching URLs -- makes it highly actionable for attackers.

The real danger here is the combination of plaintext passwords and the specific URLs they belong to. Attackers can load these directly into automated tools and attempt access within minutes of obtaining the file. Because the passwords were never hashed, there is no cracking step required -- the credentials are ready to use instantly against any service the victim visits.

The Priv.part4 uploaded by a Telegram User Breach: Leaked Data Summary

• Records exposed: 706
• Date of breach: 04-Jul-2023
• Email Addresses: Full email accounts linked to real user identities
• Plaintext Passwords: Unencrypted, immediately usable credentials
• URLs: Specific web adresses showing exactly where credentials were harvested from
• Country of origin: United States
• Breach category: Stealer log distributed via Telegram

Why Priv.part4 uploaded by a Telegram User Credential Data Is Valuable to Attackers

Stealer logs distributed through Telegram channels represent some of the most operationally ready data in the cybercriminal ecosystem. Unlike database dumps that require decryption or cracking, this data arrived fully packaged with usernames, passwords, and the exact URLs targeted. Attackers use this for credential stuffing -- testing each email and password combination across hundreds of popular platforms like banking portals, email providers, and e-commerce sites. Even if a victim only used one compromised service, password reuse means multiple accounts can fall at once. Fraud rings also buy stealer log data to commit account takeover fraud, draining wallets or reselling verified access to other criminals on underground markets.

What Is a Stealer log and How Does It Work?

A stealer log is the output file generated by information-stealing malware -- software that silently infects a device and harvests saved passwords, browsing data, and session cookies. Once the malware runs on a victims machine, it packages everything into a structured file and uploads it to an attacker-controlled server or Telegram channel. The operator then sorts, sells, or exploits the data directly. Stealer logs are particularly dangerous because they capture credentials at the moment they are typed or retrieved from a browser, meaning even recently changed passwords may be included. The Priv.part4 file uploaded to Telegram in July 2023 is one such output, collected from infected endpoints in the United States before being shared in a private channel.

Search for Your Data in the Priv.part4 uploaded by a Telegram User Breach

If you suspect your email or credentials may have appeared in this stealer log, you can search HEROIC's database right now. HEROIC monitors over 400 billion exposed records across thousands of breach sources -- including Telegram stealer logs like this one. Enter your email address to instantly check whether your data has been compromised and get guidance on what to do next. Don't wait for attackers to act first.