What’s the Default Username and Password for Raspberry Pi OS (Raspbian)?

While the latest version of Raspberry Pi OS (formerly known as Raspbian) no longer features a default ‘pi’ user and password, requiring you to set up a new user and password upon first booting up, earlier versions of the operating system still have one. And as you probably know, leaving the default password on anything is incredibly insecure.

Source: makeuseof.com