logs_cvv Telegram Breach: 15,577 Credentials Quietly Stolen

HEROIC analysts found that in March 2023, an anonymous Telegram user uploaded a stealer log dataset labeled logs_cvv, exposing 15,577 records. The dataset contained email addresses, plaintext passwords, and the URLs of the specific services where credentials were captured, all harvested by infostealer malware operating on compromised devices without the victims' knowledge.

Why This Is Dangerous

The logs_cvv dataset is particularly concerning because of its scale and the operational readiness of its contents. With over 15,000 plaintext credential sets paired to their target URLs, attackers have a ready-made toolkit for account takeover. The name of the dataset suggests it may have been curated with financial data in mind, raising the risk of direct financial fraud for affected individuals. Stolen credentials from stealer logs frequently surface on dark web marketplaces within hours of collection.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs (the specific sites and services where credentials were stolen)

Why This Matters

When credentials are exposed in plaintext alongside the services they belong to, the risk of account takeover is immediate. Criminals use automated tools to test stolen credentials across banking platforms, email providers, e-commerce sites, and corporate systems. Victims may also face identity theft and financial fraud if the compromised accounts hold sensitive personal or payment data. Reused passwords across multiple services multiply the damage a single stolen credential can cause.

How Stealer Logs Work

Infostealer malware typically arrives through phishing campaigns, cracked software, or malicious browser extensions. Once active on a device, it silently harvests saved passwords, autofill data, and session cookies from the victim's browser. The stolen data is packaged into structured log files and sent to the attacker's infrastructure. These log archives are then sold or shared on Telegram channels and dark web forums, where buyers use them for credential stuffing and account takeover attacks.

Check If You Are Affected

HEROIC's free breach scanner checks your email address and credentials against a database of more than 400 billion compromised records, including stealer log datasets like logs_cvv. If your data was captured by infostealer malware, early detection gives you the chance to change affected passwords and lock down your accounts before damage occurs.

Run a free scan at HEROIC.com and see if your credentials are exposed.