HEROIC Analysts Link the ‘Jan’ Combolist to 10 Stolen Logins

A Small "Jan" Combolist Turns Up on Telegram

In March 2026, HEROIC analysts identified a combolist file, labeled simply "Jan," uploaded to Telegram and containing 10 records of email addresses paired with plaintext passwords and associated URLs. The generic filename gives no hint of a famous source, but the credentials inside are just as real as those in any larger leak.

Why a File This Small Still Matters

Because the passwords in this file are plaintext, anyone who downloads it can log directly into these 10 accounts without any extra effort. A file this size might look insignificant next to headline-making breaches, but for each of the people whose email and password appear here, the risk of someone else logging into their account is just as serious.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated URLs

Why This Matters

Small combolists like this one still feed the same credential stuffing pipelines as bigger breaches, since attackers combine dozens of files like this into larger batches before testing them against banking, email, and shopping sites. If a password here matches one reused elsewhere, it can lead directly to account takeover, identity theft, or financial fraud.

How a Combolist Like This Gets Made

A combolist is simply a list of email or username and password pairs compiled from any number of sources, phishing pages, malware infections, or recycled data from older breaches, and packaged into a single file. Generic filenames like "Jan" often just reflect a date, batch, or the uploader's own shorthand rather than any real breach name, and files like this circulate freely on channels like Telegram regardless of size.

Check If You Are Affected

Since combolists like this one rarely announce themselves, the only way to know if your credentials were caught up in one is to check. HEROIC's free breach scanner searches more than 400 billion leaked records, so you can quickly find out and update any passwords you've reused elsewhere.