If you had an old Minecraft account on the website, it was converted to a Mojang account. If you want to log in to your old account, you will need to sign up for a new Mojang account.
In the old days, accounts were permanent. However, in 2015, Mojang introduced a new account system that is not permanent. Instead of a username and password, players can now sign-in with their email address and a six-digit code sent to them by Minecraft.
Mojang AB is a Swedish game company founded in 2009, specializing in developing video games for PC, Xbox 360, PlayStation 3 and other gaming platforms. The company’s founders are Markus Persson (a.k.a. “Notch”), Carl Manneh and Jakob Porser; it employs 12 people to work on Minecraft content full-time.
If you have an email address associated with your Mojang account, you can recover it by signing in to your account on the Mojang website. If you do not have an email address associated with your account, there is no way to recover it.
No, Microsoft account is not the same as a Mojang account. Microsoft account is an email address and password used to log into services like Xbox Live, Outlook.com, Office 365, OneDrive, Skype, Bing, Windows Phone Store and Windows Store. A Mojang account is required to play Minecraft on the computer.
Yes, a Mojang account is needed for Minecraft. The account can be made or created by going to the official website and signing up. A username and password are required, as well as a birth date.