One Telegram Upload, 1,336 Records: The sanet.hu Leak Exposed

HEROIC analysts identified a single combolist file tied to "sanet.hu" uploaded to Telegram on June 10, 2026. That one upload contained 1,336 records pairing email addresses with plaintext passwords, along with the login URLs those credentials belong to, a reminder that it doesn't take a massive file to put real people at risk.

Why This Is Dangerous

Every password in this file is stored in plaintext, meaning anyone who downloads it can read the credential exactly as it was typed, no cracking or decryption required. Paired with the matching login URL, an attacker can go straight to the sign in page and attempt access immediately.

What Was Exposed

• Email Addresses
• Plaintext Password
• URLs

Why This Matters

Small combolists like this one often get less attention than headline breaches, but the risk to each person in the file is the same. If any of the 1,336 affected people reused their email and password on another account, whether a bank, another email provider, or a social media platform, an attacker can use this leak to attempt to log in there too, a tactic known as credential stuffing.

How Combolists Work

A combolist pairs an email or username with a password, typically gathered from older breaches, phishing pages, or malware infections, then bundled together and shared or sold on Telegram, sometimes as small, single files rather than massive archives. Attackers load these lists into automated tools that test each pair against dozens of popular websites at once, looking for logins that still work.

Check If You Are Affected

Rather than wondering whether your email is one of the 1,336 exposed in this leak, use HEROIC's free breach scanner to check right now. HEROIC searches a database of more than 400 billion leaked records, including this combolist, so you can find out immediately if you were exposed and change any reused passwords before someone else does.