52,169 U.S. Passwords in One Telegram Upload: Inside the SunCloudNew March 2026 Megadump

52,169 U.S. Passwords in a Single File: The Scale of SunCloudNew Part 1

Most Telegram stealer drops contain a few thousand records. SunCloudNew Part 1 is not most drops. On March 31, 2026, an anonymous Telegram user uploaded a file containing 52,169 U.S. email-password pairs in cleartext, making this one of the largest individual stealer log files HEROIC's DarkHive analysts have processed in recent months. Every record includes a plaintext password and the exact URL where that credential was recieved from an infected device.

At this scale, statistical certainty takes over: somewhere in this file are employees of major corporations, healthcare workers, government account holders, and everyday users who reused the same password across every service they've ever signed up for. 52,169 records is not a targeted leak. It's a sweep, and a wide one.

What the SunCloudNew Part 1 File Contains

This is the first and largest part of a two-file release totaling nearly 5,900 individual log sources. Part 1 carries the majority of the exposed records:

• Email Addresses: 52,169 U.S. accounts
• Plaintext Passwords: Full cleartext, immediately exploitable
• Target URLs: Exact login pages from each infected device

The archive was split into two parts for upload, suprisingly common when collections exceed Telegram's file size thresholds. The operational intent is clear regardless: distribute the data to as wide an audience as possible, as fast as possible.

How a Single File Reaches 52,000 Records

A stealer log this large doesn't come from one compromised machine. It comes from an infostealer operation running across hundreds or thousands of infected devices over an extended period. Each infected computer contributes its saved browser credentials, session cookies, and autofill data to the operator's central collection server. When the batch reaches a threshold, the operator dumps it to Telegram, often at no charge, as a way to build credibility or attract buyers for more exclusive private datasets.

For anyone in this file, the exposure happened at the device level, not at a company's database. Standard advice like "that company was breached, change your password there" doesn't fully apply here. The credential was stolen directly from the victim's own computer. Every service that password was ever used on is potentially at risk.

What 52,169 Exposed Accounts Means in Practice

Credential stuffing campaigns run against this file would yield hundreds of successful logins across email providers, banking apps, streaming platforms, and corporate tools. For businesses: if even a small number of employees are among the 52,169, your perimeter may already have been probed by threat actors who downloaded this file in late March 2026. For individuals: if your email is in this file, your password has been available to anyone monitoring that Telegram channel since the upload date.

The urgency here is higher than with older breaches. The data is recent, the accounts are definitly still active, and the attackers who downloaded this file have had time to act on it. Changing passwords on accounts tied to the exposed email is the most direct protective step available.

HEROIC Indexed Both Parts of the SunCloudNew Release

The full SunCloudNew operation, both Part 1 and Part 2, is in HEROIC's breach database, which now spans more than 400 billion records. The free scanner at HEROIC.com checks your email against this dataset in seconds. Given the volume of Part 1 alone, running the check now is worth the 30 seconds it takes.