US Workers Targeted in the DIAMOND_logscloud Stealer Log Breach

In July 2023, a Telegram user uploaded the 625 PCS - DIAMOND_logscloud stealer log, exposing 7,855 records harvested from infected devices across the United States. The name of this dataset -- 625 PCS -- refers to the number of compromised personal computers or endpoints targeted in this campaign, revealing that this was a deliberate, coordinated attack against real people using their everyday devices. Email addresses, plaintext passwords, and the URLs of authenticated websites were all captured silently, with no warning ever issued to victims. HEROIC's dark web monitoring team confirmed this data is circulating in criminal networks more than two years after it first surfaced, meaning the credentials remain activel at risk.

Why This Is Dangerous

Stealer log campaigns like DIAMOND_logscloud do not discriminate -- they target anyone using a Windows PC who clicks the wrong download link or visits a compromised site. The "DIAMOND" branding in criminal markets typically signals a premium-quality log collection, indicating the operators specifically selected and packaged credentials with a higher-than-average value. With plaintext passwords in hand, criminals can immediately attempt logins against banking portals, corporate email systems, and personal accounts. Because victims recieved no notifcation, many are still using the exact same compromised passwords today, three years after the attack.

What Was Exposed

• Email Addresses: Used as the primary login and account recovery method across virtually every online platform -- in the wrong hands, your email address is the skeleton key to your entire digital identity.
• Plaintext Passwords: Stored and transmitted in readable form with no encryption whatsoever, meaning any criminal who downloaded this file can use your password immediately without any additional tools or effort.
• URLs: The web addresses of every authenticated site captured during the infection, giving attackers a precise map of which accounts belong to each victim and which to target first.

Why This Matters

The 625 compromised endpoints in this dataset represent real people -- office workers, remote employees, students, and home users -- whose daily browsing habits and saved credentials were silently harvested and packaged for sale. If your device was infected and your credentials appear in this breach, every account where you reused that password is at risk right now. The danger is compounded by the fact that stealer logs also capture session cookies, which allow criminals to bypass two-factor authentication entirely and take over your accounts even if you have changed your password since the infection occured.

How Stealer Logs Work

A stealer log is the output of malware secretly installed on a victim's device, usually through a fake software download, a cracked application, or a malicious email attachment. Once running, the malware silently extracts every password stored in the browser, records the URLs of sites you visit while logged in, and copies session cookies that can bypass login screens. All captured data is packaged into structured log files and distributed through Telegram channels and dark web marketplaces. The malware operates completely invisibley -- victims almost never receive any alert or warning that their device was compromised.

Check If You Are Affected

HEROIC's free scanner checks your email address against more than 400 billion exposed records, including the DIAMOND_logscloud breach and thousands of other datasets tracked across the dark web. Visit heroic.com to run a free scan in seconds and find out immediately whether your credentials are in criminal hands. Do not wait -- the sooner you know, the sooner you can change compromised passwords and protect your accounts from takeover.