The SunCloudNew 1773 Leak Could Unlock Your Bank and Email

In July 2026, HEROIC analysts identified a stealer log named "SunCloudNew 1773 - 455 K ULP" after it was uploaded by a Telegram user. The file contained 427,727 records, each one pairing an email address with a plaintext password and the URL of the site the login belonged to.

Why This Leak Could Reach Far Beyond One Account

The danger with a file like this isn't just the single account it names, it's everything connected to it. Once an attacker has a working email and password pair, they can try it on your email provider, your bank, and your social media accounts, since so many people reuse the same password across all three. With the URL already telling them where the credentials work and the password already in plaintext, there's nothing standing between this file and a chain reaction across your other accounts.

What the SunCloudNew 1773 Log Exposed

• Email addresses tied to individual accounts
• Plaintext passwords with no encryption protecting them
• URLs identifying the exact site or service each login unlocks

Why This Matters for the 427,727 People Affected

A single reused password is often the only thing standing between an attacker and a person's email, bank, and shopping accounts all at once. Attackers run leaked email and password pairs like these through automated credential stuffing tools that test the same login across dozens of popular sites in seconds. For anyone in this file who reuses passwords, that one leaked credential can unravel into identity theft and financial fraud across multiple accounts.

How a Stealer Log Like SunCloudNew 1773 Is Built

Stealer logs are produced by malware that infects a device through a fake download, pirated software, or a malicious attachment, then quietly harvests saved browser passwords, autofill data, and the site URLs tied to them. That stolen data gets packaged into a text file and sent back to whoever controls the malware, and files of this size are often assembled from many infected devices before being shared on Telegram, exactly where SunCloudNew 1773 surfaced.

Check If You Are Affected

If you reuse passwords across your email, bank, or social accounts, it's worth finding out whether your information is part of this leak before someone else does. HEROIC's free breach scanner checks your email against more than 400 billion leaked records, including stealer logs like this one, so you can lock down your accounts before they're compromised.