Our Analysts Found the Heb Fish Dump in Private Breach Forums

Heb Fish (hebfish.com) was a US-based online retailer operating in the fish and aquarium supply market. In May 2013, the site's database was breached, exposing 6,895 customer accounts. The stolen data includes email addresses, usernames, MD5 password hashes, and a hash type identifier per record. The breach is verified and has been circulating in breach aggregation databases since the original compromise.

Why Heb Fish Breach Is Dangerous

MD5 is one of the weakest hashing algorithms ever used for password storage. By 2013, MD5 password hashes were already considered valuble targets for automated cracking because large precomputed lookup tables (rainbow tables) existed for common passwords. The hash type field in the Heb Fish dataset confirms each password was hashed with MD5, which means these passwords can be automaticaly recovered by any attacker with access to basic cracking infrastructure, with no specialized hardware required for common passwords.

What Was Exposed in the Heb Fish Leak

• Email Address
• Username
• MD5 Password Hash
• Hash Type Identifier

Why This Heb Fish Data Puts You at Risk

Online retail accounts contain more than just login credentials. If you had a Heb Fish account, your profile likely included your shipping address and possibly a saved payment method. While payment card data itself is not in this breach, the email-password pair is enough to log into the account and access any stored personal or billing information. For customers who reused their Heb Fish password on other platforms, those accounts are directly at risk from credential stuffing.

Why MD5 Password Hashes Are Effectively Plaintext

MD5 was never designed for password hashing: it was a general-purpose hashing algorithm that became widely misused for storing passwords in the early 2000s. By the time the Heb Fish breach occured in May 2013, security standards had long moved away from MD5. The result is that most passwords stored as MD5 hashes can be recovered almost instantly using rainbow tables for anything shorter than 10 characters and using brute force for longer passwords that do not include special characters. In practice, MD5 hashes offer minimal protection compared to modern hashing algorithms designed for password storage, such as bcrypt or Argon2.

Check If Your Data Was Exposed

HEROIC's free breach search checks your email against 400 billion+ compromised records, including the Heb Fish dataset. Search now to confirm whether your account was part of this breach. If you shopped at Heb Fish in 2013, update any accounts that shared your registration password and review accounts where your same email address is registered.