Your Data May Already Be Compromised. The lionking_cloud Breach Exposed 29,754 Records.

In July 2025, a Telegram user uploaded a stealer log file labeled lionking_cloud 502count, exposing 29,754 records containing endpoint data, email addresses, API hosts, and plaintxt passwords. Stealer logs like this one do not originate from a single company breach -- they are assembled from dozens or even hundreds of infected devices, meaning victims often have no idea their credentials were captured. By the time the file surfaces on Telegram, the data is already being tested against live accounts.

Why This Is Dangerous

With nearly 30,000 records in a single file, the lionking_cloud dump gives attackers a ready-made credential list for automated attacks. Plaintext passwords require zero cracking time -- they can be tested immediately against email providers, banking portals, and cloud platforms. Because stealer logs capture data directly from infected browsers and applications, the credentials are typically still active when the file is sold or shared, making this type of leak far more actionable than older database breaches.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs

Why This Matters

The lionking_cloud leak is part of a broader pattern of stealer log files being distributed through Telegram, where threat actors share and sell credential dumps with minimal friction. For individuals, the risk is immediate account takeover. For organizations, a single compromised employee credential can serve as the entry point for ransomware, data exfiltration, or business email compromise. The 502count label in the file name suggests the log was organized and tagged, indicating a degree of sophistication among the actors involved.

How Stealer Log Attacks Work

Infostealer malware is commonly delievered through phishing campaigns, trojanized software installers, or malicious browser extensions. Once it is running on a device, it captures passwords stored in browsers, active session cookies, and credentials entered into web forms. The harvested data is packaged into structured log files and exfiltrated to a remote server. These logs are then sold in bulk on dark web markets or shared freely in Telegram groups. Credential stuffing tools then automate the process of testing each username and password combination against popular services until a match is found.

Check If You Are Affected

HEROIC's free dark web scanner searches more than 400 billion exposed records, including stealer logs like the lionking_cloud 502count dump. Enter your email to find out instantly whether your credentials have been compromised. If your data appears in any known breach, HEROIC will alert you so you can change your passwords and secure your accounts before an attacker exploits them.