1532 Hotmail Breach: 1,532 Logins Leaked Since October 2025

HEROIC analysts identified a stealer log file uploaded to Telegram on 12 October 2025 containing 1,532 records tied to Hotmail accounts. The dataset includes email addresses, plaintext passwords, and the URLs of the login pages where those credentials were captured, a signature pattern of malware that steals data directly from an infected device rather than from a hacked company server.

Why This Stealer Log Is Dangerous

Because the passwords in this file were stored and leaked in plaintext, no cracking or decryption is required. Anyone who downloads this log can immediately try the exposed email and password pairs against Hotmail, Outlook, and any other site where the same login was reused. The included URLs make this worse, since they show attackers exactly which sites each password unlocks, turning a simple credential list into a ready-made attack map.

What Was Exposed in the 1532 Hotmail Leak

• Email addresses
• Plaintext passwords
• URLs of the sites where credentials were entered

Why This Matters for Hotmail Users

Credential pairs like these are the raw material for credential stuffing attacks, where automated tools test stolen logins across banking, shopping, and social media sites in bulk. If any of the 1,532 exposed accounts reused their Hotmail password elsewhere, attackers can pivot from a single stolen login into full account takeover, identity theft, or financial fraud, often without the victim noticing until money or accounts are already gone.

How Stealer Logs Like This One Work

A stealer log is generated by infostealer malware that infects a victim's device, often through a fake download, cracked software, or malicious attachment. Once running, the malware quietly harvests saved browser passwords, autofill data, and the web addresses tied to each login, then packages everything into a log file. These logs are routinely dumped on Telegram channels and dark web forums, exactly as happened here, where anyone can download and use them for free.

Check If Your Hotmail Account Was Affected

If you use Hotmail or Outlook, it is worth confirming whether your address appears in this or any other stealer log. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, giving you a fast answer and clear next steps if your credentials show up.