Someone Has Your Password: 18,499 Credentials in NL 22.3 Leak

HEROIC analysts discovered a stealer log labeled NL 22.3 that was shared on Telegram in April 2023. The dataset contains 18,499 records scraped from infected devices, each including an email address, a plaintext password, and the URL where the credentials were entered.

Why Plaintext Passwords Leave No Room for Delay

Every password in the NL 22.3 stealer log is stored in plain, readable text. There is no hashing, no encryption, and no salting protecting these credentials. Anyone who obtains the file can read and use every password instantly.

This is the most dangerous form of credential exposure. Attackers do not need to invest time or computing power to crack these passwords. They can copy a password directly from the log, paste it into a login form, and gain immediate access to the associated account.

The combination of a readable password and its matching URL means attackers know both what the password is and exactly where to use it, removing all trial and error from the exploitation process.

What Was Exposed in the NL 22.3 Dump

• Email Addresses — The full email addresses used to log into various websites and services, which attackers can also leverage for targeted phishing and social engineering campaigns.
• Plaintext Passwords — Completely unprotected passwords recorded as users typed them, offering immediate, no-effort access to compromised accounts.
• URLs — The specific login pages and web applications where credentials were entered, providing a precise target list for account compromise.

Why Even a Small Leak Creates Outsized Damage

While 18,499 records may seem modest compared to multi-million-record breaches, the impact per record in a stealer log is disproportionately high. Each entry represents a real person who was actively using those credentials on a specific service at the time of compromise.

Password reuse transforms each stolen credential into a skeleton key. Research shows that the average person reuses the same password across at least three to four different services. A single compromised pair from this log could unlock an email account, a banking portal, a cloud storage service, and a work VPN in rapid succession.

Threat actors specifically prize smaller, high-quality stealer logs because they tend to contain fresher and more reliable credentials than massive aggregated dumps, making them ideal for targeted attacks.

How Stealer Logs Silently Collect Your Data

Infostealer malware operates covertly on infected devices, running in the background while users go about their daily activities. It monitors web browsers and intercepts stored passwords, session tokens, cookies, and autofill data without any visible indication of compromise.

Once collected, the stolen data is formatted into a structured log that links each credential to its associated URL and email address. These logs are then uploaded to Telegram channels, dark web forums, and underground marketplaces where they are freely shared or sold to other cybercriminals.

The NL 22.3 dataset follows this lifecycle. The 18,499 credential sets it contains were extracted silently from real devices, compiled into a distributable format, and published on Telegram where any threat actor could download and exploit them.

Check If Your Credentials Were Exposed

Even a single compromised credential in your name can lead to cascading account takeovers if the password has been reused elsewhere. The only way to know for certain is to check.

HEROIC's free breach scanner searches your email address and personal data against more than 400 billion records compiled from stealer logs, data breaches, and dark web sources. A scan takes just moments and can tell you whether your information appears in the NL 22.3 leak or thousands of other known exposures.

If your credentials are found, update your passwords immediately on all affected accounts, turn on two-factor authentication, and run a malware scan on any device where you have saved login information in a browser.