If You Reuse Passwords, the Netherlands 3 Leak Should Worry You

HEROIC's continuous Dark Web monitoring uncovered a stealer log file called "Netherlands 3" that was circulated in February 2023. This dump contains 19,134 records harvested from compromised devices, with a particular focus on Dutch users. Each record includes an email address, a plaintext password, and the URL where the credential was captured — giving attackers everything they need to access your accounts if you reuse passwords.

Plaintext Passwords Offer No Defense

All 19,134 passwords in this collection are stored in plaintext, with no encryption or hashing to slow attackers down. This means the moment someone accesses this file, they can read every password as clearly as you wrote it. There is no grace period and no additional step required — your credentials are immediately usable for unauthorized logins.

What Was Exposed

• Email Addresses — Dutch user accounts serving as both identifiers and phishing entry points
• Plaintext Passwords — fully exposed, zero-effort credentials
• URLs — the specific online services where login information was intercepted

Password Reuse Is the Real Threat Multiplier

The danger of this breach extends far beyond the 19,134 accounts directly exposed. If you use the same password for your email, your bank, and your social media, one entry in this dump gives attackers the key to all three. Credential stuffing attacks exploit this behavior at industrial scale, testing stolen pairs against dozens of services per second. Dutch users who reuse passwords across services like ING, Rabobank, or Bol.com are especially at risk.

Where Stealer Log Data Comes From

The Netherlands 3 data originated from infostealer malware that silently infected victims' computers and mobile devices. This malware typically spreads through pirated software, malicious email attachments, or compromised websites. Once active, it raids the browser's password store, captures session cookies, and records every credential the user enters. The stolen data is organized by country and distributed through Telegram channels and underground forums, making it easy for attackers to find region-specific credentials.

Check If Your Credentials Were Exposed

HEROIC's breach scanner indexes over 400 billion records from data breaches, stealer logs, and dark web leaks worldwide. Enter your email address to check whether your credentials were included in the Netherlands 3 dump or any other known breach. Knowing your exposure status is the first step toward changing compromised passwords and protecting your accounts with two-factor authentication.