"The personal information of almost 5 million parents and more than 200,000 kids was exposed earlier this month after a hacker broke into the servers of a Chinese company that sells kids toys and gadgets, Motherboard has learned.
The hacked data includes names, email addresses, passwords, and home addresses of 4,833,678 parents who have bought products sold by VTech, which has almost $2 billion in revenue. The dump also includes the first names, genders and birthdays of more than 200,000 kids.
What’s worse, it’s possible to link the children to their parents, exposing the kids’ full identities and where they live, according to an expert who reviewed the breach for Motherboard."
If your children use their online sites you can check if your account has been compromised here, it also checks all known data hacks
https://haveibeenpwned.com/
http://motherboard.vice.com/read/one-of-the-largest-hacks-yet-exposes-data-on-hundreds-of-thousands-of-kids