Analysts Link the PremCloud Leak to 9,474 Stolen Login Credentials

9,474 Login Credentials Traced to the PremCloud Stealer Log

HEROIC analysts examined a stealer log uploaded to a Telegram channel on November 26, 2023, under the name PremCloud. The file contained 9,474 records, each combining an email address, a plaintext password, and the URL the credentials were used on, all pulled directly from infected devices.

Why the PremCloud Leak Is Dangerous

Nothing in this file is encrypted. The passwords sit in plain text next to the email addresses and the exact websites they unlock, which means an attacker can start testing logins the moment they open the file. There's no cracking, no guessing, just a ready list of working credentials.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs linked to each account

Why This Matters

Reused passwords are what turn a single stealer log into a much bigger problem. Attackers take leaks like PremCloud and run the credentials against major email providers, banks, and retailers through automated credential stuffing. If any of your other accounts share the exposed password, they become fair game for takeover and fraud.

How Infostealer Malware Builds a Log Like PremCloud

Stealer logs like this one come from malware that infects a computer and silently collects everything saved in the browser: usernames, passwords, and session cookies. Once the malware has gathered enough, its operator packages the data into a log and distributes it through Telegram channels or dark web marketplaces, which is exactly how the PremCloud file surfaced.

Check If You Are Affected

Instead of wondering whether your email is among the 9,474 records in the PremCloud log, search it directly. HEROIC's free breach scanner checks your address against more than 400 billion leaked records and tells you immediately if it's time to change a password.