One Telegram Post. 856 Log Files. datacloudspace Had 9,024 Records.

In June 2023, a Telegram user uploaded a collection of 856 stealer log files under the name datacloudspace, exposing 9,024 records without a single victim receiving any alert. Each file in the dataset represented credentials captured from a different infected endpoint -- complete with email addresses, plaintext passwords, and the specific URLs the victim had visited. HEROIC analysts have verified this breech and confirmed the data has been accessible in criminal channels for over three years. The victims in this collection likely still have no idea their login informaton was stolen.

Why This Is Dangerous

The 856-file structure of the datacloudspace collection reveals the industrial scale of modern infostealer operations. Each file represents a separate compromised device, meaning 9,024 individual credential records were harvested across hundreds of separate victims. Because the breach occurred at the device level rather than at a company server, there was no legal obligation for anyone to notify victims. The 9,024 people in this dataset recieve no warnings -- and with over three years elapsed, criminals have had extensive time to exploit and resell these credentials.

What Was Exposed

• Email Addresses -- The primary identifier linking a victim across every online service, used by attackers as the starting point for account takeover campaigns.
• Plaintext Passwords -- Captured directly from browser memory and autofill storage, bypassing any server-side password hashing the victim's websites may have used.
• URLs -- A record of each victim's specific browsing activity, revealing which banking portals, email providers, and business tools they actively used at the time of infection.

Why This Matters

With 9,024 plaintext credential pairs available in underground markets, the datacloudspace collection provides criminals with ready-made ammunition for credential stuffing attacks. Automated tools can test each email and password combination against thousands of platforms within hours. A single successful login to a victim's primary email account enables password resets across every other service linked to that address. For anyone whose credentials appear in this collection and who has not since changed their passwords, the risk of account takeover remains active today.

How Stealer Log Attacks Work

Infostealer malware is engineered to be undetectable during operation. It embeds itself into system processes, intercepts browser credential storage, and silently transmits stolen data to attacker-controlled infrastructure. The 856 log files in the datacloudspace collection each represent a single infected machine session, packaged and uploaded by a Telegram-based threat actor who distributed the archive to criminal buyers and followers. Victims typically have no idea an infection occurred because the malware leaves no obvious trace on the device and causes no performance issues that would prompt investigation.

Check If You Are Affected

HEROIC's free Dark Web Scanner indexes stealer log collections including the 856 logs datacloudspace dataset and checks your email against more than 400 billion exposed records. Visit heroic.com to run your free scan now. If your email appears in this or any other known breach, HEROIC provides clear, actionable steps to secure your accounts before criminals can use your stolen credentials.