US Users Targeted: Logs_3 March Stealer Log Exposed 163,565 Passwords

HEROIC analysts identified a stealer log file uploaded to a public Telegram channel on March 3, 2025. The dataset, primarily tied to United States users, contains 163,565 records made up of email addresses, plaintext passwords, and URLs, including API host addresses tied to backend services.

Why This Is Dangerous

Plaintext passwords mean attackers can log in immediately, with no cracking required. What makes this particular log more concerning is the presence of API host URLs alongside the credentials. Instead of only exposing consumer-facing logins, this suggests some of the harvested credentials may unlock developer tools or backend services, giving an attacker a potential foothold well beyond a single user account.

What Was Exposed in the Logs_3 March Leak

• Email addresses
• Plaintext passwords
• URLs, including API host addresses

Why This Matters for the 163,565 People Affected

Any password reused across accounts becomes a liability the moment it appears in a log like this. Attackers run these credentials through automated credential stuffing tools against banking, email, and shopping sites, turning one stolen password into account takeover, identity theft, or direct financial fraud.

How This Stealer Log Was Collected

Stealer logs are produced by infostealer malware that infects a device, then quietly copies saved browser passwords, autofill data, and the URLs tied to each login, including any API endpoints a user or developer accessed. That data is packaged into a raw log file and shared on platforms like Telegram, often with little to no filtering, which is why this file still contains sensitive API host information alongside ordinary consumer logins.

Check If You Are Affected

To find out if your email address or passwords appear in this leak or any other, run a free scan with HEROIC's breach checker, which searches a database of more than 400 billion leaked records for your information.