Your Login May Already Be Compromised. TichanCloud Leaked 17,000 Plaintext Passwords.

HEROIC analysts flagged this breach in November 2023 while scanning Telegram channels that are known distribution points for stolen credential files. A user on one of those channels uploaded a stealer log file tied to TichanCloud, a free file hosting service, exposing 17,461 records. The data included email addresses, plaintext passwords, and URLs. What made this one stand out was the plaintext passwords -- a sign that either the platform stored credentials in an unsafe format or the malware captured them before any encryption could take place.

Why This Is Dangerous

Plaintext passwords are the worst possible outcome in any breach. When passwords are stored or transmitted securely, they are hashed in a way that makes them hard to reverse. But when they appear in plain readable text, any attacker who downloads the file can immediately start using those credentials with no extra work required. Combined with the email addresses and API endpoint URLs also present in this dump, attackers have everything they need to attempt account takeovers across dozens of different services where the same password may have been reused.

What Was Exposed

• Email addresses
• Plaintext passwords
• URLs and API endpoint information

Why This Matters

Stealer log breaches like this one feed directly into credential stuffing attacks, where criminals automaticaly try leaked email and password combinations against popular services. Banking portals, email providers, and social media platforms are all common targets. If you used the same password on TichanCloud that you use anywhere else, those other accounts are at risk right now. The API endpoint data adds another layer of concern for developers or businesses who may have used the platform to host sensitive files or configuration data.

How a Stealer Log Breach Works

Stealer logs are created by a type of malware called an information stealer. When a device gets infected, the malware quietly scans for saved passwords, browser cookies, and stored credentials, then packages everything up and sends it to whoever is running the attack. These files are then traded and shared on Telegram channels and dark web markets. The victim often has no idea their credentials were harvested until they start noticing suspicious logins on their accounts. The TichanCloud log appears to have been collected this way, with the resulting file posted publicly for anyone to download and exploit.

Check If You Are Affected

HEROIC's free scanner checks your email against more than 400 billion breached records, including this TichanCloud stealer log. If your credentials were captured, you need to change your password immediatly on every service where you used the same login. Don't wait to find out the hard way -- run a free check at heroic.com and see exactly what of yours has been exposed.