237 Email Credentials Exposed in the Hotmail Mail Access Leak

HEROIC analysts identified this stealer log on 21-Aug-2025. The breach exposed 237 records, with stolen data including email addresses, plaintext passwords, and URLs. The source is identified as Mail Access 269 Hits Hotmail Mix Valid 100, uploaded by a Telegram user.

Why This Is Dangerous

This stealer log specifically targets Hotmail accounts and contains only credentials that have been verified as active. This means every one of the 237 records in this file represents a working email login that criminals can use immediately, without any additional testing or verification.

What Was Exposed

• Email addresses (Hotmail accounts)
• Plaintext passwords
• URLs (website addresses where credentials were used)

Why This Matters

Hotmail and Outlook accounts are connected to Microsoft services including OneDrive, Xbox, and Microsoft 365. When attackers gain access to your email account, they can reset passwords for other services, read private messages, and access files stored in the cloud. Even a small list of verified credentials like this one can enable targeted fraud against real individuals.

How a Stealer Log Works

Stealer malware installs itself on a victim's device through phishing emails, fake software downloads, or malicious websites. Once installed, it silently copies saved passwords and browsing data from the device. These credentials are then uploaded to private Telegram channels where other cybercriminals can purchase or download them.

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.