Dark Web Intel: ARCEUSULP Leak Exposes 60,967 Login Records

On 20-Jun-2026, HEROIC analysts tracking dark web activity identified a stealer log file, shared by a Telegram user under the label "ARCEUSULP 252 155380," containing 60,967 records. The file includes email addresses, plaintext passwords, and the URLs of the websites those credentials belong to.

Dark Web Intel: What This ARCEUSULP Leak Reveals

Files like this one circulate quietly through dark web channels and Telegram groups long before most victims ever find out their information is exposed, which is exactly why HEROIC analysts monitor these sources directly. Each of the 60,967 records here pairs a plaintext password with the exact URL it unlocks, meaning the intelligence gathered isn't theoretical, it's a working credential ready for an attacker to use immediately.

What Was Exposed

• Email addresses
• Plaintext passwords
• The login URLs tied to each set of credentials

Why This Matters

With 60,967 records exposed, the immediate risk is account takeover on the exact services listed in the file. The risk multiplies if any of those passwords are reused elsewhere: attackers commonly take confirmed email and password pairs from leaks like this and try them against other popular sites in a tactic called credential stuffing, turning one exposed login into several compromised accounts.

How Stealer Logs Work

Stealer logs are produced by malware that infects a device, often through a fake download, cracked software, or a malicious attachment, and then quietly copies whatever the browser has saved: passwords, autofill data, and the addresses of the sites they belong to. That stolen data gets compiled into a log, like this 60,967-record file, and circulated through dark web forums and channels such as Telegram, exactly where HEROIC's monitoring caught it.

Check If You Are Affected

Dark web leaks like this one often go unnoticed by the people they affect, which is why proactive monitoring matters. HEROIC's free breach scanner checks your email address against more than 400 billion leaked and dark web records, so you can find out quickly and change any exposed passwords before someone else uses them.