Cheese_vip Stealer Log: Exactly 33,669 Records Compromised

In June 2025, HEROIC analysts identified a stealer log dataset labeled Cheese_vip 530count distributed via Telegram that exposed 33,669 records. The dataset contained credentials harvested by infostealer malware from infected endpoints, including email addresses, plaintext passwords, and the specific URLs associated with each stolen credential, providing attackers with a precisely mapped attack resource.

Why This Is Dangerous

With 33,669 records each containing a plaintext password alongside its associated URL, the Cheese_vip dataset gives attackers no guesswork. Every credential is ready to use. Threat actors can immediately attempt logins against the exact platforms listed in the log, whether those are email services, banking portals, streaming platforms, or enterprise VPNs. The recency of this breach, leaked in mid-2025, means many passwords are likely still active.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (site-specific credential context)

Why This Matters

Credential stuffing attacks powered by stealer log data are highly effective because victims rarely know their device was compromised. By the time accounts are taken over and financial fraud or identity theft occurs, attackers have often already changed recovery information to lock the victim out. With 33,669 compromised records in circulation, a significant number of affected individuals remain unaware of their exposure. Password reuse amplifies the damage, turning a single infected device into a vulnerability across every account that shares the same credentials.

How Stealer Log Breaches Work

Infostealer malware typically reaches victims through trojanized software downloads, phishing links, or malicious browser extensions. Once running on a device, it systematically extracts saved credentials from all installed browsers, captures session cookies that bypass two-factor authentication, and records the URLs tied to each credential. This harvested data is packaged into a structured log file and transmitted to the attacker's server. Logs are then sold individually or distributed in bulk on Telegram channels and dark web marketplaces. The Cheese_vip dataset represents one such bulk distribution event, combining 530 individual log files into a single 33,669-record release.

Check If You Are Affected

HEROIC's free breach scanner searches more than 400 billion compromised records, including stealer log collections like Cheese_vip. Because this breach occurred in 2025, credentials may still be in active use and at immediate risk. Check your email address now at HEROIC.com to see whether your data appears in this or any other known breach dataset.