263 Plaintext US Logins Leaked in Telegram Stealer Log

HEROIC analysts identified a stealer log uploaded to a Telegram channel on January 13, 2023, containing 263 records pulled from infected US devices. Each record pairs an email address with a plaintext password and the API host URL that credential belongs to.

Why This Is Dangerous

263 is a small number compared to some leaks, but every one of those records is a complete, working login sitting in plain text. There is no encryption to break and no guesswork involved, just an email, a password, and the exact service it unlocks, ready for immediate use.

What Was Exposed

• 263 individual records
• Email addresses
• Plaintext passwords
• Associated API host URLs
• Endpoint data concentrated in the United States

Why This Matters

A small file does not mean small risk. Attackers run leaked email and password pairs through automated credential stuffing tools that test the same login across banking, retail, and email platforms regardless of how many records are in the original file. If you reused this password elsewhere, that account is exposed too, and the linked email becomes a target for phishing.

How This Stealer Log Was Built

This data did not come from a hacked website, it came from infostealer malware running on individual victims' machines, often installed through a cracked download or a fake installer. The malware quietly copies every saved password it finds on an infected device and sends it back to its operator, who compiles harvests like this 263-record file and shares them on Telegram to build a following or attract buyers.

Check If You Are Affected

HEROIC's free breach scanner checks your email address against more than 400 billion leaked records, including stealer logs like this one, so you can confirm your exposure in seconds and change any reused passwords before someone else does.