ULP Private Lines 2 TG ArhontCorp.txt Leak: 17,473,852 Logins Exposed

HEROIC analysts uncovered a combolist named ULP Private Lines 2 TG ArhontCorp.txt, posted to Telegram on August 28, 2026, containing 17,473,852 email and password logins paired with the exact URLs where they were used. If you have ever reused a password across more than one account, this file is worth your attention, because that is exactly the kind of credential pairing combolists like this one are built from. The only way to know for certain whether your own information is inside it is to scan your email.

Credential Stuffing Turns One Password Into Many

Every entry in this file pairs an email address with a plaintext password and the exact site it was used on, which means an attacker does not need to guess anything, they can simply try logging in. Because combolists like this one are often fed into automated tools, a single stolen login can be tested against dozens of other websites within minutes. Anyone who reuses passwords is especially exposed, since one leaked login can unlock several unrelated accounts at once.

Inside the ULP Private Lines 2 File

• Email Addresses: identifies the account owner and doubles as a username for login attempts.
• Plaintext Passwords: usable immediately, with no cracking required to log in.
• URLs: shows attackers exactly which site each login pair belongs to.

What 17 Million Exposed Logins Can Lead To

With more than seventeen million logins in a single file, the practical risk is automated account takeover at scale. If the URL attached to your email points to a financial, shopping, or email login page, that account becomes a direct target. Because combolists are frequently merged with others like it, a login first exposed here can resurface in future credential stuffing lists months or years later.

Where a File Like This Comes From

Combolists are built by collecting email and password pairs from many smaller leaks and stealer logs, then merging them into one large file sorted by site or login type. Unlike a leak pulled from one company's own systems, a combolist is assembled afterward from credentials gathered elsewhere. According to HEROIC analysts, files like this one are commonly recirculated and relisted on Telegram under new names.

What Should You Do If Your Password Is Reused?

With 17,473,852 logins at stake, the fastest way to know where you stand is to scan your email for a match against this and other known leaks. If one turns up, change that password immediately, along with any other account where you used the same one. Run the check on both your personal and work email addresses, since combolists rarely draw a line between the two.