Because Myetherwallet is a non-custodian wallet, you are mostly responsible for the security of your asset. Myetherwallet may be accessed via a browser or a mobile application. You have the option of linking your existing Ethereum wallet to it or creating a new one.
When you create a new account on myetherwallet, you will be given a 24 seed phrase or mnemonic phrases, which they will advise you to keep safe because if you lose it, there is no way to recover it because the team does not store your pin or password.
There is the option to establish several accounts, each with a different name for administrative purposes.