6,574 Plaintext Passwords Dumped on Telegram via HUNTER_CLOUD

HEROIC identified the first installment of a multi-part stealer log series from the HUNTER_CLOUD operation, distributed on Telegram in July 2026. This initial batch alone contains 6,574 records, each comprising an email address, a plaintext password, and the URL of the web service where the credentials were stolen. The data was labeled as VIP logs, suggesting it was marketed as a premium collection within criminal marketplaces.

Every Password Is Exposed in Plaintext

None of the 6,574 passwords in this HUNTER_CLOUD batch are encrypted or hashed. They appear in their exact original form, readable by anyone who accesses the file. This means there is no buffer between when the data was leaked and when it can be exploited. Attackers can copy any password from the dump and paste it directly into a login page, gaining immediate unauthorized access to the associated account.

What Was Exposed

• Email Addresses — primary account identifiers for services across the internet
• Plaintext Passwords — authentication credentials stored without any form of encryption
• URLs — website addresses pinpointing which services each credential belongs to

Credential Stuffing Amplifies the Impact of Every Leak

Cybercriminals use automated credential stuffing tools to test stolen email-password pairs against hundreds of services simultaneously. Given that this is just Part 1 of a larger HUNTER_CLOUD series, the total number of exploitable credentials is significantly higher. Each pair that works on additional sites beyond the original target multiplies the damage. Banking, email, cloud storage, and social media accounts are all common secondary targets in these attacks.

Inside the HUNTER_CLOUD Stealer Operation

HUNTER_CLOUD operates as a stealer-log-as-a-service platform, distributing malware-harvested credentials through Telegram channels. The underlying infostealer malware infects devices via phishing campaigns, malicious advertisements, and compromised software. Once installed, it systematically extracts every stored credential from the victim's browsers, along with session tokens and autofill data. The stolen data is aggregated, partitioned into numbered batches, and released to subscribers of the channel.

Check If Your Credentials Were Exposed

With 6,574 records in just this first batch, your email and password may be among the compromised data. The HEROIC data breach scanner searches across more than 400 billion records from known breaches and stealer log collections. Run a search to find out if your credentials appear in the HUNTER_CLOUD VIP Logs or any other data set. If a match is found, change your passwords immediately and enable two-factor authentication on all accounts to prevent exploitation.