Dark Web Intel: 6,299 Credentials From the DIAMOND_logscloud Dump

HEROIC's dark web intelligence team tracked the DIAMOND_logscloud credential dump through underground Telegram channels and criminal forums after it surfaced on June 21, 2023, confirming that 6,299 records containing email addresses, plaintext passwords, and stolen URLs were actively being traded among credential traffickers. Dark web monitoring of this dataset revealed it was distributed across multiple private channels simultaneously, reaching hundreds of criminal buyers within hours of its initial posting. The breached records were harvested from infected devices by stealer malware and packaged into a log file that was then uploaded by a Telegram user to the criminal ecosystem where it remains circulatig today. Because the breach originated from individual devices rather than a company database, victims recieved no formal notification and the overwhelming majorety remain unaware their login data is currently in active criminal use.

Why This Is Dangerous

Dark web intelligence on this dataset shows it was shared freely rather than sold exclusively, meaning the 6,299 credential pairs have been distributed to an unknowable number of criminal actors rather than a single buyer. Free distribution dramatically increases the speed and scale of downstream attacks because any threat actor with a Telegram account could have obtained this file within hours of its posting. Each record contains a ready-to-use email and plaintext password pair along with the exact URL where it was stolen, giving every buyer everything required to begin credential stuffing attacks with no additional preparation.

What Was Exposed

• Email Addresses: Complete email addresses for all 6,299 affected users, which function as usernames on most platforms and enable attackers to send highly convincing follow-on phishing messages to the same victims using personalized content.
• Plaintext Passwords: Unencrypted passwords captured directly from infected devices by stealer malware, eliminating any need for decryption and making each credential immedietly usable for account takeover attempts across every site where the password is reused.
• URLs: The exact web addresses where each credential was captured, providing criminals with a detailed inventory of which sites and services each victim actively uses, including any sensitive or high-value platforms.

Why This Matters

Criminals who obtain stealer log data like this DIAMOND_logscloud file typically begin automated credential stuffing operations within hours of aquiring the dataset. Tools designed for this purpose test each email and password combination against major platforms including email providers, online banking, retail sites, and workplace collaboration tools. When a login succeeds, the attacker can drain financial accounts, intercept verification codes, and use the compromised email to reset passwords on other services. Each validated credential pair is also worth money on dark web markets, so victim data from this breach may pass through many criminal hands over the coming months and years, extending the window of risk long past the original leak date.

How Stealer Log Works

A stealer log breach differs from a traditional database hack because the data was not stolen from a company server but from individual users' own devices. Stealer malware infects computers and phones through phishing links, fake cracked software, and malicious browser extensions, then silently records every password the user types or has saved in their browser. The collected data is packaged into log files and sent to criminals who sort, validate, and trade them through Telegram channels and dark web forums. The DIAMOND_logscloud log is one component of a broader criminal ecosystem that processes millions of stolen credentials per month, and victims are almost never notifyed that their device was compromised until the damage is already done.

Check If You Are Affected

HEROIC's free breach scanner checks your email against more than 400 billion exposed records, including this DIAMOND_logscloud stealer log dataset, and tells you exactly which credentials have been compromised. Visit heroic.com to run your free scan in seconds and get clear guidance on which accounts require immediate password changes. Taking action now significantly reduces the window criminals have to exploit your stolen data before you can close the door.