1400 Hotmail Valid Combolist: 1,415 Verified Logins Leaked

In June 2026, HEROIC analysts found a combolist file called 1400 Hotmail Valid being shared on Telegram. The word valid in the name suggests the seller claims these credentials were tested and confirmed to work. The file contained 1,415 records pairing Hotmail email addresses with plaintext passwords and associated URLs. Why This Is Dangerous: Lists marketed as valid or verified are more dangerous than random collections because sellers have typically already confirmed the logins work before distributing them. That means attackers can skip the trial-and-error step and move straight to using these accounts. What Was Exposed: - Hotmail email addresses - Plaintext passwords - URLs linked to each account Why This Matters: A verified Hotmail login gives an attacker access to an inbox that likely connects to password resets for banking, shopping, and social media accounts. If you reused this password elsewhere, that one working login can cascade into multiple account takeovers, financial fraud, or identity theft. How a Combolist Like This Works: To label a list as valid, sellers run the credentials against login pages using automated tools, keeping only the pairs that successfully authenticate. This checking process is what makes verified lists like this one especially valuable to criminals running credential stuffing campaigns. Check If You Are Affected: Run a free scan with HEROIC's breach scanner, checking your email against more than 400 billion leaked records, to see if your Hotmail or other accounts appear in this or any other exposed dataset.