Stolen in 2016, Still Cracking: The 6M Record Aipai Gaming Breach

HEROIC analysts first flagged the Aipai breach when monitoring underground forums in September 2016, tracking a dataset allegedly pulled from the Chinese gaming platform Aipai.com. The breach exposed 6,017,824 records containing email addresses and MD5 password hashes. What made this dataset worth watching wasn't just its size but how it kept resurfacing, and analysts beleive the data has changed hands multiple times since it first appeared in hacking communities.

How MD5 Password Hashes Let Attackers Crack Millions of Gaming Passwords

MD5 is a hashing method that was considered acceptable years ago but is now known to be weak. Attackers use precomputed tables called rainbow tables to reverse MD5 hashes back into plain-text passwords in minutes. Once cracked, those passwords are tried across email providers, social media accounts, and banking sites. Because gaming accounts and financial accounts are often treated as seperate concerns by users, many people use the same password for both, which is exactly the gap attackers exploit.

What Was Exposed in the Aipai Breach

• Email Address
• Password Hash

Why Gaming Breaches Fuel Account Takeovers Across the Web

Gaming platforms collect real email addresses tied to real people, which makes their breach data valuable far beyond the gaming world. Credential stuffing attacks use gaming breach data to break into unrelated accounts, from streaming services to online banking. Identity theft and financial fraud occured in thousands of cases traced back to gaming platform leaks, with victims often unaware their credentials were even compromised until accounts were drained or locked out.

How a Database Breach Works

A database breach occurs when an attacker gains unauthorized access to the backend servers where a platform stores user information. This can happen through software vulnerabilities, phishing attacks on employees, or simply misconfigured databases left exposed to the internet. Once inside, attackers download the data silently and exit. The stolen files are then posted on hacker forums, sold in private marketplaces, or traded across Telegram channels.

Check If Your Data Was Exposed

HEROIC's free breach scanner checks your email against more than 400 billion records, including the Aipai dataset and hundreds of other leaked databases. It takes seconds and tells you exactly what was exposed. Run your free scan now and know where you stand.