The OCTOPUSCLOUDLOGS Leak Has More Records Than Most Small Cities Have People

HEROIC researchers identified the OCTOPUSCLOUDLOGS stealer log on December 29, 2023, after a Telegram user posted it publicly. The upload contained 12,271 records harvested from infected devices, including email addresses, plaintext passwords, and the URLs of the sites where those credentials were entered. The name references 358 individual log packages bundled together, suggesting widespread malware activity across many compromised computers.

Why This Leak Is Dangerous

Stealer logs with plaintext passwords give criminals everything they need to walk straight into an account without any guessing. Unlike encrypted password hashes that require cracking, these credentials are ready to use the moment they are downloaded. Attackers scan through logs like this one looking for email and password combinations that match accounts on banking sites, payment processors, and social networks.

What Was Exposed in the OCTOPUSCLOUDLOGS Leak

• Email addresses
• Plaintext passwords (no encryption, no hashing)
• URLs showing which sites the credentials belong to

Why This Matters to Real People

Password reuse is extreamly common, and criminals know it. When they find a working email and password pair in a stealer log, they run automated tools that try those same credentials across hundreds of popular websites. This leads to account takeovers, fraudulant transactions, and in some cases full identity theft. The URLs included in this leak make it even easier for attackers since they already know which sites to target first.

How Stealer Logs Work

Infostealer malware is usually disguised as a game cheat, cracked software, or a file attached to a phishing email. Once it runs on a device, it silently collects saved browser passwords, credentials typed into login pages, and a list of recently visited websites. That data gets packaged into a log file and sent to the attacker's server. Collections of these logs are then shared on Telegram channels or sold on dark web forums, where anyone can download them for free or a small fee.

Check If Your Information Was Exposed

HEROIC's free breach scanner has indexed over 400 billion leaked records, including stealer logs like OCTOPUSCLOUDLOGS. Type in your email address to find out if your data appeared in this breach or any of the thousands of others in our database. If you get a match, update your passwords immediately and enable two-factor authentication on every important account.