Attackers Can Exploit 547,330 Logins From SunCloudNew 1743

With SunCloudNew 1743 - 600 K ULP, uploaded to Telegram on 31-May-2026, attackers have 547,330 working logins to play with, and there's a lot they can actually do with that kind of access beyond just logging in once.

Why This Is Dangerous

At over half a million records, whoever holds this file can run automated credential stuffing attacks against major banks, retailers, and email providers all at once, testing each stolen login against dozens of popular sites in a matter of minutes. Attackers don't need to target you personally, your information just needs to be one of the 547,330 caught in the sweep.

What Was Exposed

• 547,330 total records
• Email addresses
• Plaintext passwords
• URLs tied to each login

Why This Matters

Once inside an account, attackers can drain saved payment methods, change recovery details to lock the real owner out, or use the compromised email to send phishing messages to everyone in the victim's contact list before anyone noticed anything had occured. A leak this size gives criminals enough raw material to imediately run these attacks at scale rather than picking targets one at a time.

How Stealer Logs Work

A ULP dump like SunCloudNew 1743 is built from malware infected devices that record login credentials the moment they're typed into a browser. All that stolen data gets funneled back to a central location, sorted, and packaged into one large file, wich then becomes a ready made toolkit for anyone looking to break into other people's accounts.

Check If You Are Affected

Don't wait to find out the hard way what an attacker can do with your information. HEROIC's free breach scanner checks your email against more than 400 billion leaked records, including large dumps like SunCloudNew 1743, so you can act before someone else does.