bigprofessor.so: 14,744 Stolen Email and Password Pairs Leaked

HEROIC analysts identified this stealer log on 10-Jun-2026. The breach exposed 14,744 records, with stolen data including email addresses, plaintext passwords, and URLs. The source is identified as bigprofessor.so.

Why This Is Dangerous

This breach contains exactly 14,744 email and password pairs, each stored in plaintext. That means each record is ready to use without any decryption or processing. The URLs included in the dataset identify the specific accounts these credentials belong to, giving attackers a targeted roadmap to unauthorized access across thousands of accounts.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs

Why This Matters

Tens of thousands of stolen login pairs represent significant raw material for criminal campaigns. Credential stuffing tools can process this data rapidly, testing every email and password combination across banking, email, retail, and social media services. Anyone in this breach who uses the same password elsewhere faces a heightened risk of account takeover, identity theft, and financial fraud.

How a Stealer Log Works

Infostealer malware is designed to harvest saved login credentials from infected devices. It typically arrives through unsafe downloads, phishing emails, or cracked software. Once running, it extracts stored passwords and their associated URLs from web browsers and sends the data to the attacker. This information is then organized into a stealer log and distributed through Telegram or dark web forums.

Check If You Are Affected

HEROIC offers a free breach scanner that searches 400 billion records. Search your email address now to see if your credentials appear here or elsewhere. Free, takes seconds.