Telegram Stealer Log Breach Hits 71,517 Users Across Industries

In March 2023, a stealer log file was uploaded to a Telegram channel, and when HEROIC's threat intelligence team looked into it, the numbers were hard to ignore: 71,517 individual records sitting out in the open for anyone with access to grab. This wasn't a targeted hack against one company. It was a stealer log, the kind of dump that scoops up whatever a piece of malware could siphon off an infected device, then packages it up for anyone in the channel to download.

Why This Is Dangerous

What makes this leak so unsettling is the mix of data sitting inside it. Plaintext passwords mean there's no encryption standing between a criminal and your account, they can read your password the moment they open the file. Combine that with email addresses and the URLs of the sites those credentials belonged to, and you get a ready-made shopping list for account takeover. Attackers don't even need to guess wich site a password goes with, it's already labeled for them right there in the log.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs tied to each set of credentials
• 71,517 total records exposed

Why This Matters

This kind of leak matters even if you have never heard of a company by this name, because it isn't one. Stealer logs don't come from a single breached website, they come from infected computers, meaning the accounts inside could belong to dozens of different services all tied to the same victim. If you reused a password across multiple sites, one exposed login can definately unlock several of your accounts at once, not just the one it was originally stolen from.

How Stealer Logs Work

Stealer logs get their name from stealer malware, a type of infection that hides on a victim's device and quietly copies saved passwords, browser cookies, autofill data, and anything else it can find. Once the malware has collected everything, it sends the haul back to whoever is running it, who then packages the data into a log file and either sells it or, as occured here, shares it for free in a Telegram channel. Because the malware captures whatever is saved in the browser at the time of infection, a single infected device can leak credentials for email, banking, social media, and shopping accounts all in one go.

Check If You Are Affected

You don't have to wonder if your information is sitting in a log like this one. HEROIC runs a free breach scanner that checks your email address against a database of more than 400 billion leaked records, including stealer logs just like this one. It takes seconds to run and could save you a serious headache down the road, so it's worth checking today rather than waiting to find out the hard way.