The LinkedIn.com Leak Exposed 688 US-Based Login Credentials

HEROIC analysts identified a combolist titled linkedin.com uploaded by a Telegram User, shared on 08-Mar-2025. The file contains 688 records tied to United States based accounts, pairing email addresses with plaintext passwords and the LinkedIn URLs they unlock.

Why This Is Dangerous

LinkedIn accounts are tied to your professional identity, connections, and often your employer's directory. Because the passwords in this list are stored in plaintext, anyone who obtains the file can log straight into these professional profiles, potentially sending messages, viewing private connections, or using the account to run scams that look legitimate because they come from a real person's profile.

What Was Exposed

• Email addresses
• Plaintext passwords
• LinkedIn account URLs

Why This Matters

If your email is among these 688 US based records, the impact can reach past LinkedIn itself. Many professionals reuse passwords between their work and personal accounts, so a compromised LinkedIn login can lead to credential stuffing on email or banking accounts, opening the door to account takeover, identity theft, or targeted phishing that uses your real professional details to look convincing.

How Combolists Work

A combolist pairs stolen email addresses or usernames with matching passwords, typically gathered from past breaches, phishing pages, or stealer malware and grouped together, in this case around LinkedIn logins. Lists built around a specific platform like LinkedIn are valuable to criminals because they can be used directly for business email compromise scams, professional impersonation, or social engineering aimed at coworkers and connections.

Check If You Are Affected

If you use LinkedIn, it is worth confirming whether your account is one of the 688 affected. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including combolists like this one, and tells you right away if you have been exposed. Run a free scan now and update your password if you find a match.