BREAKING: Modine Exposes 7,840 Records in Database Combolist Incident

A data breach tied to Modine, an American thermal-management and HVAC manufacturer, put 7,840 user records on a hacking forum back in August 2018. The dataset included employee or customer email addresses paired with password hashes, and it has since made its way into broader credential dumps circulating across the dark web. Even years later, this data continues to be a viable tool for attackers.

Why This Is Dangerous

Password hashes, even though they aren't plaintext, are far from safe. Depending on the algorithm used, many of these hashes can be cracked offline using dictionary attacks, brute force tools, or pre-computed rainbow tables. If the hashes are weak or unsalted, attackers can recover the original passwords in a matter of hours.

Once cracked, those credentials get fed into automated login bots that try them across dozens of popular services. Modine is an industrial company, so many of the affected accounts likely belong to engineers, procurement staff, or business contacts, people whose credentials could provide access to sensitive systems or corporate accounts.

The fact that this breach occured as a database dump and then circulated as a combolist means it has beleive to have reached a wide audience of threat actors over the years, increasing the likelihood of exploitation.

What Was Exposed

• Email addresses
• Password hashes (format unknown)
• Account registration data
• Potential employee or partner contact information
• Internal system usernames
• Account creation or activity timestamps
• Domain-linked corporate email identifiers

Why This Matters

Modine is a publicly traded American company with operations across multiple countries. A breach of this kind is not just a risk for individual users, it can signal broader vulnerabilities in how industrial organizations handle access management and user data. Corporate email addresses are especially valuable to attackers because they can be used in targeted phishing campaigns against the company itself.

The 7,840 affected records may seem small compared to consumer-scale breaches, but in an industrial context each adress could represent a gateway into sensitive business systems, partner portals, or supplier networks.

How Database Breaches Work

Database breaches often start with a single point of failure, a misconfigured server, an unpatched vulnerability in web software, or a stolen admin credential. Once attackers have access to the backend, they can extract user tables containing every account registered on the platform.

In Modine's case, the breach appears to have been a direct database extraction that was then packaged and posted to an underground forum. This type of leak often goes undetected for weeks or months before showing up in threat intelligence feeds.

After the initial posting, the data gets aggregated into combolists and redistributed across multiple channels, which is why breaches from 2018 still show up in credential stuffing attacks today.

Check If You Were Affected

If you had an account associated with Modine or used the same email and password combination at other services, your credentials may still be in active circulation. Run a free search at heroic.com using HEROIC's breach checker to see if your email appeared in this breach or others. Update any matching passwords immediately and consider enabling multi-factor authentication on all important accounts.