Core wallet. Encrypted passphrase. Backed up in 3 separate physical locations. You back up the wallet.dat file.

Located in C:/your username/AppData/local/roaming/digibyte ... on windows, application support on mac.

You might have to enable view hidden folders to see it.

Download wallet here: https://github.com/digibyte/digibyte/releases/tag/v6.14.2