Were Your Credentials Exposed in the IN Stealer Log?

In June 2026, a stealer log file labeled "IN" was uploaded to Telegram, exposing 3 records that included email addresses, plaintext passwords, and associated URLs. While the dataset is small, stealer logs are uniquely dangerous because they capture live credentials harvested directly from infected devices rather than from a single breached database.

What Data Was Compromised

• Email Addresses — Used as login identifiers across numerous platforms, making them prime targets for credential-stuffing attacks.
• Plaintext Passwords — Captured in unencrypted form by info-stealing malware, these passwords are immediately exploitable without any cracking required.
• URLs — The specific websites and services each credential was used on, giving attackers a direct map of which accounts to target.

How This Stealer Log Was Obtained

Stealer logs originate from info-stealing malware such as RedLine, Raccoon, or Vidar that silently infects a user's device. Once active, the malware harvests saved passwords from browsers and applications, session cookies, and autofill data. The captured credentials are then packaged into log files and distributed through underground channels like Telegram. This particular dump—labeled simply "IN"—was shared by a Telegram user in June 2026.

Why Small Dumps Still Matter

A dataset of just 3 records might seem insignificant, but stealer logs differ fundamentally from traditional breaches. Each record represents a real person whose device was actively compromised, meaning the captured credentials were likely valid at the time of theft. Attackers routinely aggregate small dumps into massive combined lists, so these 3 records will almost certainly be merged into larger credential databases used for automated attacks. Additionally, the included URLs tell attackers exactly which services to target, making exploitation highly efficient.

What You Should Do Right Now

• Change your passwords immediately — Prioritize the specific accounts associated with the exposed URLs, then update any other accounts that share the same credentials.
• Run an antivirus scan — Since stealer logs come from infected devices, ensure your machine is clean before setting new passwords.
• Enable two-factor authentication — Even if an attacker has your password, 2FA adds a critical second barrier they cannot bypass with stolen credentials alone.
• Monitor your accounts — Watch for unauthorized logins, password reset emails you did not initiate, or unfamiliar account activity.

Assess Your Exposure

Use HEROIC's free Email Checker, powered by a database of over 400 billion compromised records, to find out whether your credentials appear in this or any other known breach. Early detection gives you the opportunity to secure your accounts before attackers exploit the data.