Search Your Inbox: The Outlook Part2 6 Leak Exposed 16,864 Logins

In May 2023, HEROIC analysts identified a combolist titled "Outlook Part2 6" after a Telegram user uploaded it to a file-sharing channel. The file contains 16,864 records pairing email addresses with plaintext passwords and the login URLs where those credentials were originally used. Why This Is Dangerous: Because the passwords are stored in plaintext rather than hashed or encrypted, anyone who downloads this file can immediately try each email and password pair on other websites. If you reused a password from an old email, shopping, or subscription account anywhere else, an attacker does not need to guess or crack anything, they just need to type it in. What Was Exposed: Email addresses. Plaintext passwords. Associated login URLs. Why This Matters: Combolists like this one are the raw material for credential stuffing attacks, where automated tools test thousands of stolen logins against banking sites, streaming services, and social media platforms in minutes. A single reused password can lead to account takeover, financial fraud, or identity theft, especially when the exposed email is also used to reset passwords elsewhere. How This Combolist Was Likely Built: A combolist is a plain text file of email-and-password pairs, usually pulled together from older breaches, phishing kits, and stealer malware logs and combined into one master list. These lists get traded cheaply on Telegram because they let criminals test the same login across dozens of sites at once, without ever needing to hack anything themselves. Check If You Were Affected: You do not need to guess whether your email is in this combolist or one of the thousands like it. HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records, including this one, so you can find out in seconds and change any reused passwords before someone else logs in first.