Researchers Uncover HelloKittyCloud 799 Leak: 9,795 Records Exposed

HEROIC analysts observed a stealer log file named HelloKittyCloud 799 being shared on Telegram, containing data that traces back to November 2023. The file holds 9,795 records harvested from infected devices, each one listing an email address, a plaintext password, and the URL of the account it belongs to.

Why the HelloKittyCloud 799 Leak Is a Serious Threat

Because the passwords in this file are stored in plain text, no decryption or cracking is required to use them. A criminal browsing the log can search by website name and instantly pull up a working set of credentials, ready to log in as if they were the real account owner.

What the HelloKittyCloud 799 File Contains

• Email addresses connected to real user accounts
• Plaintext passwords with no encryption applied
• URLs revealing which website or service each login unlocks

Why a Small Stealer Log Can Cause Big Damage

Even a file with under ten thousand records can do serious harm because so many people recycle the same password across different sites. Attackers take confirmed logins and run them through automated tools against banking apps, email accounts, and shopping platforms, a tactic that quickly turns into account takeover, identity theft, or outright financial fraud.

How the HelloKittyCloud 799 Data Was Likely Collected

Stealer log files like this one are the output of infostealer malware, hidden programs that infect a device thru a malicious download or infected attachment. Once running, the malware quietly grabs stored browser passwords, session cookies, and autofill entries, then ships the haul back to whoever is controling it. From there the data gets bundled into a log and posted for sale or free download in Telegram channels.

See If Your Information Was In This Leak

Rather than wait and wonder, you can check your email against HEROIC's database of more than 400 billion breached records right now for free. If HelloKittyCloud 799 or any other leak turns up a match, changing your password immediately and turning on two-factor authentication will stop attackers in thier tracks.