Online researcher Chris Vickery uncovered a database this weekend containing the personal information of 3.3 million accounts associated with Hello Kitty Online and official Hello Kitty websites, including SanrioTown.com, HelloKitty.com and MyMelody.com. The information included users' first and last names, birthdays, genders, countries of origin, email addresses, password hashes, password hint questions and answers, and other data, CSO Online reports.