If You Reuse Passwords, the Telegram Alien ULP P741 Leak of 13 Million Credentials Should Worry You

HEROIC analysts flagged a large-scale stealer log distribution event on February 11, 2025, originating from a public Telegram channel. The log, published by a threat actor operating as "alien" and catalogued as TXTLOG_ALIEN - 741, contained approximately 55.2 million lines of raw data. After processing for duplicates, analysts confirmed 13,083,760 unique email addresses, each paired with a plaintext password and a homepage URL indicating the exact website from which the credential was harvested. At over 13 million unique accounts, this is among the larger individual stealer log releases in the Alien series distributed through this channel.

Why Reusing Passwords Makes the Alien ULP P741 Leak Dangerous for You Personally

If you use the same password on more than one site, and your email address appears in this dump, an attacker has everything they need to access other accounts under that password. They do not need to guess or crack anything. The password is already there, written out in plain text. Attackers run automated tools that test these credential pairs across hundreds of platforms in minutes. Banking sites, email providers, streaming services, and workplace portals are all tested. A single reused password can result in account takeovers across multiple services before you even know the dump exists.

What Was Exposed in the Telegram Alien ULP P741 Dump

• Email addresses (13,083,760 unique accounts confirmed)
• Plaintext passwords (immediately usable, no decryption required)
• Homepage URLs (identifying exactly which site each credential was stolen from)

Why This Matters for Account Takeover and Financial Fraud

The homepage URLs in this dump are not incidental. They give attackers a pre-sorted attack list. Instead of testing a credential against every platform, the attacker already knows that a specific email and password combination belongs to a specific banking site, shopping account, or corporate login. This dramatically increases the success rate of account takeover attempts. Victims who use the same password for email and financial accounts are at the highest risk. A compromised email account can then be used to reset passwords on every other service, compounding the damage from a single exposed credential.

How Stealer Log Breaches Work

The Telegram Alien ULP P741 dump was not created by hacking a single company. It was built by running infostealer malware on thousands of individual computers. The malware, often installed through pirated software, fake browser extensions, or phishing links, harvests every saved password from the browser, captures which sites are currently open, and sends the data silently to the attacker. The attacker aggregates these harvests from machines across many countries into a single file and publishes it. The ULP designation stands for URL:Login:Password, the format that makes each line in the file directly ready for use in credential stuffing tools.

Check If Your Email Is in the Alien ULP P741 Leak

HEROIC's free breach scanner searches over 400 billion exposed records, including the full Telegram Alien ULP series. If your email address appears in this dump, you will know immediately which accounts need new passwords and where to focus your security response. The scan is free and takes seconds. Run your check now at heroic.com before attackers act on your data.