ULP Private Lines 1 TG ArhontCorp.txt Puts Millions of Logins at Risk

HEROIC analysts uncovered a combolist titled ULP Private Lines 1 TG ArhontCorp.txt, uploaded to Telegram on August 28, 2026, containing 17,896,138 records pairing email addresses with plaintext passwords and the URLs those logins open. Unlike a single company breach, a combolist like this is built by collecting email and password pairs from many different sources and compiling them into one list for attackers to test. Scan your email to see if your login is one of them.

The scale here is what makes this file so dangerous. With nearly eighteen million entries, attackers can run automated scripts that try each email and password pair against dozens of popular websites in minutes. Because the passwords are stored in plaintext, there is nothing slowing an attacker down between opening the file and using the credentials inside it.

What This Combolist Contains

• Email Addresses: identifies each account holder and gives attackers a target for follow-up phishing.
• Plaintext Passwords: ready to use immediately, with no cracking needed before an attacker can log in.
• URLs: show which site each password pair was collected for, helping attackers aim their attempts precisely.

Why a List This Size Matters

A combolist of this size is normally fed straight into automated credential stuffing tools that quietly try each pair against banking, email, and shopping sites. Anyone who reused a password across multiple accounts is the most exposed, since a single matching pair can unlock several unrelated services at once. Even people who changed a password since it was collected may still be at risk if they reused that same password somewhere else.

How a Combolist Like This Gets Made

Combolists are not the result of one company being hacked. They are assembled by pulling email and password pairs from many smaller leaks and stealer logs, then merging and cleaning the list so it is easier to search and reuse. The file is named for the group or channel that compiled it, in this case a private Telegram upload, rather than for any single breached service.

Responding to the ULP Private Lines Combolist

Scan your email to check whether your address appears anywhere in this list. If it does, change the password on every account where you used that same password, starting with email and financial accounts first. Use a unique password for each account going forward so that one leaked combolist cannot unlock multiple parts of your life, and apply this to work email accounts just as carefully as personal ones.