asselin.on.ca Stealer Log Breach: 1,847 Passwords Leaked

Stealer Log Leak Exposes 1,847 Credentials Linked to asselin.on.ca

On 10 June 2026, a threat actor operating on Telegram uploaded a stealer log file containing 1,847 records connected to the domain asselin.on.ca. The exposed data includes email addresses, plaintext passwords, and browser URLs, all pulled directly from devices infected with information-stealing malware. Because the passwords were stored and leaked in plaintext, anyone whose credentials appear in this file is immediately exposed to account takeover.

Why This Is Dangerous

Stealer logs are different from a typical corporate data breach. Instead of a company's database being hacked, malware installed on individual victims' computers quietly collects saved passwords, autofill data, and browsing history, then sends everything back to the attacker. The result is a list of real, working login credentials with almost no security research or verification standing between the thief and your accounts. Because the passwords here were stored in plaintext, there is no encryption slowing an attacker down. Anyone with access to this file can try these email and password combinations immediately.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated URLs showing which sites each login was used on

Why This Matters

Even a small leak like this one carries outsized risk. Criminals collect and trade stealer logs specifically because the data inside still works. With an email, a password, and the URL it unlocks, an attacker can move straight into credential stuffing, testing the same login across banking, email, and shopping sites in the hope that you reused it. That can lead to account takeover, identity theft, or direct financial fraud, especially since these passwords were never hashed or protected in any way.

How Stealer Log Malware Works

Stealer malware usually arrives disguised as pirated software, a cracked game, or a malicious email attachment. Once installed, it scans the victim's browser and system for saved passwords, cookies, and autofill data, then quietly uploads everything to a remote server controlled by the attacker. From there, the stolen data is packaged into a "log" and sold or shared for free on Telegram channels and dark web forums, which is exactly how this asselin.on.ca-linked file surfaced. Importantly, this means asselin.on.ca itself was not hacked. The exposure happened on the infected users' own devices, not on the site's servers.

Check If You Are Affected

With over 400 billion breached records in HEROIC's database, our free breach scanner can tell you in seconds if your email address turns up in this leak or any other known breach. Enter your email now to check your exposure and get clear next steps for locking down your accounts before someone else uses your stolen password.