How the 72.com Database Breach Exposed 811K Plaintext Passwords

HEROIC analysts discovered the 72.com database breach while monitoring underground forums where stolen credential sets are regularly traded. The breach occured in October 2017 and exposed 811,577 user records from the online portal. What made this find partcularly concerning was the type of data involved: email addresses paired with plaintext passwords, meaning the passwords were stored with zero protection and were instantly readable by anyone who obtained the file.

Why Plaintext Passwords Put You at Immediate Risk

When passwords are stored in plaintext, attackers do not need to crack anything. They can take your exact password and try it on other sites right away. This is called credential stuffing, and it is highly automated. Attackers use software that can test thousands of login attempts per minute across banks, email services, and shopping accounts. If you used the same password from 72.com anywhere else, those accounts are accessable to anyone who has this data.

What Was Exposed in the 72.com Breach

• Email Address
• Plaintext Password

Why This Breach Still Matters Today

Data from 2017 does not expire. Credential files get traded, repackaged, and reused for years after the original breach. If someone signed up at 72.com with an email and password they still use today, that combination is likely in active circulation on criminal marketplaces. Credential stuffing, account takeover, and identity theft are all beleived to be ongoing risks from this exposure. Even if you changed your 72.com password, any other account sharing that same password remains at risk.

How Database Breaches Work

A database breach happens when an attacker gains unauthorized access to a website or application's backend data storage. This can happen through software vulnerabilities, weak server configurations, or stolen administrator credentials. Once inside, the attacker copies the user database and downloads it. In the case of 72.com, the database contained email and password records that were not encrypted, making them immediately useful for follow-on attacks.

Check If Your Data Was Exposed

HEROIC offers a free breach scanner backed by a database of over 400 billion compromised records. You can search your email address to find out if your information appeared in the 72.com breach or any other known data leak. Knowing where your data has been exposed is the first step toward protecting your accounts. Run your free scan at HEROIC today.