The Mail Access 10K Leak: 9,128 Passwords Exposed. Yours Might Be One.

HEROIC analysts identified this stealer log on 28-Oct-2025. The breach exposed 9,128 records, with stolen data including email addresses, plaintext passwords, and URLs. The source is identified as Mail Access 10K Valid 100, uploaded by a Telegram user.

Why This Is Dangerous

The Mail Access 10K Valid 100 breach contains 9,128 verified email account credentials. The label Valid 100 indicates every single record has been tested and confirmed as an active login. This means these accounts are fully accessible to anyone who has this file, with no need for further testing or guessing.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs (website addresses associated with each credential)

Why This Matters

Verified credential lists are among the most dangerous types of data sold on the dark web. When all 9,128 accounts from the Mail Access 10K leak are confirmed active, attackers can immediately begin account takeover operations. Compromised email access enables criminals to reset passwords on banking apps, intercept two-factor authentication codes, and take over every service linked to that inbox, leading to identity theft and financial fraud.

How a Stealer Log Works

Infostealer malware spreads through phishing attacks, pirated software, and compromised websites. Once on a device, it quietly harvests stored passwords and sends them to the attacker. Criminals then verify which credentials are still active before packaging them into lists like this one, which are sold or shared in underground markets.

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.