The CloudHeavenLogs 550PCS Dump Contains Exactly 9,583 Credentials

In May 2023, HEROIC analysts flagged a stealer log collection uploaded to Telegram under the CloudHeavenLogs label. This particular batch, identified as the 550PCS set, contained exactly 9,583 records harvested from compromised endpoints. Not approximately 9,500. Not nearly 10,000. Precisely 9,583 real people whose email addresses, plaintext passwords, and active service URLs were packaged and distributed to anyone with access to that Telegram channel. Each number in that count represents an individual account, an inbox, a banking session, or a cloud dashboard that was open on a device when the malware ran.

Why This Is Dangerous

The precision of a stealer log is what makes it more dangerous than a typical database dump. Attackers who download the CloudHeavenLogs 550PCS file are not sifting through hashed passwords or outdated data. They have 9,583 plaintext passwords paired with the exact URLs of the services where those passwords work. There is no cracking step, no guessing required. An attacker can begin testing credentials against live targets within minutes of aquiring the file. Because these logs have been circulating in private Telegram channels since May 2023, they have likely been redistributed and resold many times, putting the same 9,583 records in front of an expanding pool of potential attackers.

What Was Exposed

• Email Addresses: Active login identifiers used to access real accounts across banking, email, and cloud platforms
• Plaintext Passwords: Unencrypted passwords, immediately usable without any processing or decryption
• URLs: The precise web addresses of the services each credential was used to access at time of infection
• API Host Data: Endpoint information from infected machines that may expose backend systems

Why This Matters

Each of the 9,583 credential pairs in this file is a potential entry point into a chain of account takeovers. Automated credential stuffing tools test email and password combinations across hundreds of platforms simultaneously. When a password works on one service, attackers check every other account tied to that email address. A working email login becomes a reset tool for banking, shopping, and payroll platforms. If the victim reuses that password anywhere else, every site using it is immediately at risk. Financial fraud and full identity theft are well-documented outcomes of this attack chain. Many of those 9,583 individuals likely recieved no notification their data was exposed, since Telegram-distributed stealer logs sit outside typical breach notification systems.

How Stealer Log Malware Works

Infostealer malware does not need to breach a server or crack a database. It installs itself on the victim's own device and collects whatever is already there. The infection typically arrives through a phishing email, a cracked software download, or a browser extension designed to look legitimate. Once running, the malware scans all saved browser passwords, active session cookies, autofill entries, and authentication tokens without the user ever noticing. It logs the URL associated with every credential so attackers know precisely which services to target. The collected data is then packaged and transmited to an attacker-controlled server or Telegram channel. The device continues working normally. The user has no indication anything occured. This is how exactly 9,583 peoples credentials ended up in a Telegram channel in May 2023, and why they are still in circulation today.

Check If You Are Affected

HEROIC maintains one of the world's largest breach intelligence databases, with over 400 billion records indexed from stealer logs, dark web markets, data breaches, and paste sites. The CloudHeavenLogs 550PCS dump, all 9,583 records of it, is included in that database. Use HEROIC's free breach scanner to search your email address right now. If your credentials appeared in this upload or any related dump, you will see exactly what was exposed and when. Searching takes seconds. Recovering from an account takeover can take months.