The lionking_cloud Dump: 13,001 Stolen Login Credentials Hit Telegram

In July 2025, HEROIC analysts identified a stealer log dataset called lionking_cloud 304count circulating through private Telegram channels. The archive contained 304 log files and 13,001 records of stolen credentials, each consisting of an email address, a plaintext password, and the URL of a site the victim was logged into at the time of infection. The threat actor operating under the lionking_cloud identity uploaded the files to Telegram where other criminals could freely download and use them. The 13,001 people in this dataset received no warning and had no chance to change their passwords before the data began spreading through criminal networks.

Why This Is Dangerous

Plaintext passwords require no cracking and no additional work before use. Every record in the lionking_cloud dump is immediately actionable: an attacker can open the file, pick a target, and begin attempting logins within seconds of downloading it. The URLs in each record tell them exactly which services the victim was using, letting them prioritize high-value accounts like banking portals, corporate email, and payroll platforms. Credential stuffing tools automate this process across dozens of services simultaneously, meaning a single stolen record in this dataset can cascade into multiple account takeovers within hours. Victims who recieve no notification are left completely exposed during this window.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (active login sessions at the time of infection)

Why This Matters

The lionking_cloud dataset has been accessible on Telegram since July 2025. In that time, the same credentials may have been tested, resold, and reused across multiple criminal operations. A single compromised email account becomes a pivot point for resetting passwords on every linked service. Banking fraud, identity theft, and social engineering attacks on the victim's contacts all follow from a single successful account takeover. People who reuse the same password across multiple sites face the greatest exposure because one confirmed login unlocks all of them. Stealer log datasets like this one do not generate official breach notifications, so most victims remain unaware until unauthorized activity occures in one of their accounts.

How Stealer Logs Work

The lionking_cloud operation used infostealer malware to harvest credentials from real devices. This type of malware is distributed through phishing emails, fake software downloads, cracked games, and malicious browser extensions. After instalation on a device, it silently scans browser credential stores, extracts every saved password and session cookie, records the URLs the user is logged into, and transmits all of this data to the attacker's infrastructure. The attacker packages the results into structured log files and uploads them to Telegram in bulk archives. The infection and data theft happen in seconds, with no visible sign that anything went wrong. Victims who beleive their devices may have behaved unusually around mid-2025 should run a full malware scan and audit their accounts immediately.

Check If You Are Affected

HEROIC's free dark web scanner searches across 400 billion+ compromised records, including stealer log datasets like lionking_cloud 304count. Enter your email address at heroic.com to find out instantly whether your credentials appeared in this breach. HEROIC will show you exactly what was exposed so you can change your passwords and secure your accounts before an attacker gets there first.