Researchers Link 3.5K Hotmail 06.06 to 3,560 Stolen Credentials

HEROIC analysts identified this stealer log on June 6, 2026. The breach exposed 3,560 records, with stolen data including email addresses, plaintext passwords, and URLs. The source is identified as 3.5K Hotmail 06.06.

Why This Is Dangerous

The 3.5K Hotmail 06.06 stealer log targets Microsoft Hotmail accounts, capturing plaintext passwords from infected devices. Researchers linked this file to a private Telegram channel where stolen credentials are regularly posted and distributed to criminal networks. Hotmail accounts connected to Microsoft services are high-value targets because they often serve as the recovery email for many other accounts.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs (website addresses where credentials were stolen)

Why This Matters

The 3,560 Hotmail credentials in this breach give attackers a direct path into Microsoft email inboxes. From there, criminals can access personal communications, exploit linked Microsoft services, reset passwords on connected accounts, and use the email identity for phishing or fraud. June 2026 is a recent date, meaning many of these passwords may still be active and unchanged by their owners.

How Stealer Logs Work

Stealer logs are compiled by malware that secretly installs on a victim's computer. The malware extracts saved passwords from web browsers and records keystrokes during login sessions, capturing credentials in plaintext. Attackers package these stolen credentials into files named for their target audience, such as Hotmail collections, and distribute them through private Telegram channels and dark web forums.

Check If You Are Affected

HEROIC offers a free breach scanner that searches 400 billion records. Search your email address now to see if your credentials appear here or elsewhere. Free, takes seconds.