The OnlyLogsCloud Stealer Log Leaked Passwords That Unlock Accounts

HEROIC analysts spotted a stealer log tagged OnlyLogsCloud uploaded to a public Telegram channel on November 28, 2025. The file contains 21,855 records, each pairing a plaintext password with an email address and the URL of the site or service it unlocks. This wasn't a breach of a single company's servers. It's a collection of credentials pulled directly off infected devices by information-stealing malware, then packaged up and shared for anyone to download.

Why This Is Dangerous

Because the log includes the actual website or app each password belongs to, an attacker doesn't have to guess where to use a stolen credential, it's handed to them. A plaintext password sitting next to its matching login URL is close to a ready-made key to that account, no cracking or guesswork required.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated login URLs

Why This Matters

Stealer logs like this one are especially dangerous because they capture live, working credentials at the moment of infection, not old passwords from a years-old database. If any of these accounts were reused elsewhere, an attacker can chain access from one account to the next, email to banking to social media, using the URLs in the log as a map of exactly where to go.

How Stealer Logs Work

A stealer log is the output of infostealer malware, malicious software that runs quietly on an infected computer and copies saved passwords, browser cookies, and autofill data straight out of the browser or apps where they're stored. Unlike a database breach, which targets a company's servers, a stealer log represents individual people whose own devices were compromised, often through a malicious download, cracked software, or phishing link. The stolen data is then bundled into a log file and uploaded to marketplaces or Telegram channels like the one where this file appeared.

Check If You Are Affected

If your email address or a password you've used shows up in a stealer log like this, it means malware may have had direct access to your accounts. Run your email through HEROIC's free breach scanner, which checks against more than 400 billion leaked records, to see if you're exposed and should start changing passwords right away.