Search Your Email: The HyperCloud2 Dump Exposed 8,667 Accounts on the Dark Web

In June 2023, a Telegram user posted a stealer log file called HyperCloud2 containing 8,667 records harvested from infected devices. Each record includes a real email address, a plaintext password, and an endpoint URL -- the exact data combination needed to access an account without any additional work. These credentials are circulating on the dark web right now. The only question is whether yours are among them.

Why This Is Dangerous

HyperCloud2 is not a breach of a company's servers. It is a collection of credentials stolen device-by-device using malware that silently recorded what real people typed and stored in their browsers. That means every record in this file came from a real person who had no idea they were compromised. Stealer logs distributed via Telegram reach thousands of threat actors within hours of being posted. By the time most victims learn their credentials are exposed, those credentials have allready been tested against dozens of platforms by automated tools running around the clock.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (endpoint and API host references)

Why This Matters

With 8,667 plaintext password and email pairs in circulation, the HyperCloud2 dump represents a meaningful pool of immediately exploitable credentials. Unlike breaches that expose hashed passwords -- which require time and computing power to crack -- plaintext passwords are usable the instant the file is downloaded. Threat actors do not need to invest any additional effort. The endpoint URLs included in each record make this even more concerning: they reveal which specific services the victim was logged into, giving attackers a prioritized target list for credential stuffing. Account takeover, identiy theft, and unauthorized financial transactions are the likely outcomes for anyone in this dataset who has not yet secured their accounts.

How Stealer Log Breaches Work

Stealer malware is a category of info-stealing software designed to run silently on a victim's device after being installed through a phishing link, malicious download, or compromised browser extension. Once active, it sweeps the device for saved credentials -- pulling passwords from Chrome, Firefox, Edge, and other browsers, along with session cookies and API authentication tokens. All of this is packaged into a structured log file and sent to the operator's command-and-control infrastructure or directly to a Telegram channel. HyperCloud2 follows this model precisely: a structured log named after its Telegram source, containning the credential triplets that stealer kits are designed to extract.

Check If You Are Affected

HEROIC's free breach scanner checks your email address against more than 400 billion exposed records, including the HyperCloud2 stealer log. Enter your email now to find out instantly whether your credentials appeared in this dump or in any of the thousands of other breach files indexed in HEROIC's database. If you appear in the results, change your passwords immediately, prioritize your primary email account, and enable two-factor authentication on every account that matters.