The j Stealer Log Leaked in 2024. It Just Surfaced on Telegram.

HEROIC analysts identified a stealer log file labeled simply "j" that was uploaded to a Telegram channel in May 2024. The dataset contains 1,237 records made up of email addresses, plaintext passwords, and the URLs those credentials were used on, and appears to have circulated quietly for roughly two years before being logged. Why This Is Dangerous: Every password in this file was captured and stored in plaintext, so an attacker can use each email, password, and matching URL exactly as found, no cracking required. Because the data has been sitting on Telegram since 2024, there has been ample time for multiple different people to download and use it. What Was Exposed: - Email addresses - Plaintext passwords - URLs identifying the site each password belongs to Why This Matters: Even a small, oddly-named file like this one can cause real damage if any of the 1,237 credentials in it were reused elsewhere. Attackers routinely run old stealer logs like this through automated tools to test the same email and password combination on banking, email, and shopping sites, a tactic known as credential stuffing. The longer a leak circulates unnoticed, the more time attackers have to exploit it for account takeover, financial fraud, and identity theft. How a Stealer Log Like This Works: A stealer log comes from malware that quietly infects a device, harvests saved browser passwords and autofill data, and sends everything back to whoever is running the malware. That person then bundles the results into a file, sometimes with a barely descriptive name like this one, and uploads it to Telegram, where it can sit for months or years before being widely noticed. Check If You Are Affected: HEROIC's free breach scanner checks your email against more than 400 billion leaked records, including older stealer logs like this one that only recently came to light. Run a free scan today to see if your credentials are part of this leak, and change any password you have reused since 2024.