Exclusive: Webkinz security breach occurred earlier this month, sources have told ZDNet.
A hacker has leaked today the usernames and passwords of nearly 23 million players of Webkinz World, an online children's game managed by Canadian toy company Ganz.
The Webkinz game launched in 2005 as the online counterpart of a line of Ganz plush toys. Users could enter a code from their plush toy on the Webkinz website where they could play and manage a version of their toy in the form of a virtual pet.
The game has been one of the most successful online children's games of the past decade next to Disney's Club Penguin.
However, today, an anonymous hacker has posted a part of the game's database on a well-known hacking forum. ZDNet has obtained a copy of the leaked file with the help of data breach monitoring service Under the Breach.
The 1 GB file uploaded online contained 22,982,319 pairs of usernames and passwords, with the passwords being encrypted with the MD5-Crypt algorithm.