Our Analysts Found the SunCloudNew 1784 Dump With 404,842 Logins

In July 2026, HEROIC analysts discovered a combolist file named "SunCloudNew 1784 - 453 K ULP" circulating on a Telegram channel dedicated to trading leaked credentials. Despite the "453 K" in its name, the file HEROIC analysts examined contained 404,842 verified email and password records. Why This Discovery Matters Files like this one rarely stay confined to a single channel. Once analysts spot a combolist of this size being shared, it is usually already circulating across multiple Telegram groups and forums, meaning the exposure window for the people in it has likely already begun. What Was Exposed in the SunCloudNew 1784 Dump Email addresses Plaintext passwords Associated website URLs Why This Matters A dataset of over 400,000 login pairs is more than enough to fuel a sustained credential stuffing campaign. Attackers use automated tools to test each email and password combination against major websites and apps, and anyone whose credentials are reused elsewhere risks account takeover, financial fraud, or identity theft as a direct result. How Combolists Like SunCloudNew 1784 Get Named and Sold The "ULP" in this file's name stands for "user, login, password," a common shorthand combolist sellers use to describe the format of their data. Names like "SunCloudNew" with a numbered batch, here 1784, suggest this is part of an ongoing series being produced and released by the same source, likely compiled from a mix of older breaches and stealer log infections. Check If You Are Affected Because this dump was found circulating in private channels, it is worth checking your exposure directly rather than waiting for it to surface elsewhere. HEROIC's free breach scanner searches more than 400 billion leaked records, including this one, so you can confirm whether your credentials are part of the SunCloudNew 1784 leak.