Kazuya Sakakihara, a senior software engineer who previously worked for Sony during the creation of the PlayStation 3 and PlayStation 4, left his name within a snippet of code used for the PlayStation 4's hard drive. The location of his name in the code is unusual, as names are often left in a separate part of code data for storing comment data, often in abbreviation or initials. However, in the case of Kazuya Sakakihara, his name is left in full within the middle of the data unencrypted, although with a minor spelling mistake.