The OnSkunk Breach Exposed 14,147 German Nightlife Fans’ Passwords

The OnSkunk Data Breach: What HEROIC Analysts Found

HEROIC analysts identified a dataset tied to OnSkunk, a regional nightlife and event guide based in Lübeck, Germany, that served as a digital hub for club listings, party photos, and local community news. The dataset is dated August 21, 2018, and was found on a hacking forum. It affects 14,147 accounts and exposes email addresses paired with plaintext passwords.

Why Plaintext Passwords From a Community Site Like OnSkunk Are Dangerous

The passwords in this leak were stored in plaintext, meaning OnSkunk never hashed or encrypted them before storing them in its database. That is one of the worst ways a website can handle passwords, because anyone who gets hold of the data can read every password instantly with no cracking required. For a niche community site like a nightlife guide, users often assume the stakes are low and reuse a familiar password from a more important account, which is exactly what turns a small breach into a much bigger problem.

What Was Exposed

• Email addresses
• Plaintext passwords (stored without hashing or encryption)

Why This Matters for OnSkunk Users

Attackers who obtain a list of emails and plaintext passwords typically do not target the original site again. Instead, they run those same combinations against email providers, banking sites, and social media platforms in a technique known as credential stuffing. If any of the 14,147 people affected by this leak reused their OnSkunk password elsewhere, they are exposed to account takeover, and the paired email address makes it easy for scammers to send convincing, targeted phishing messages.

How This Database and Combolist Leak Likely Happened

This breach is classified as both a database exposure and a combolist. That typically means an attacker first found a way into the site's backend, often through an outdated content management system or an unpatched plugin, and pulled the user table directly. From there, the raw data gets reformatted into a combolist, a simple file that lines up each email address next to its matching password so it can be fed into automated login tools. That format is what makes old, small breaches like this one from 2018 still useful to criminals years later.

Check If You're Affected by the OnSkunk Breach

Because this leak includes plaintext passwords, it is worth checking your exposure and updating any reused passwords right away. HEROIC's free breach scanner searches a database of more than 400 billion leaked records, including this one, so you can find out in seconds whether your email address shows up in this or any other breach.