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1. Cases of lost passwords

hacker attack (refers to online wallets);

throwing out or losing access to an external carrier (a flash card or a hard disk);

losing access to the email which the wallet was registered with;

losing a sheet of paper with a password or making a typo when writing it down;

forgeting the access code of your wallet;

accident and so on.

2. How does the cryptocurrency wallet work?

2.1. Online wallets

2.2. Hot local wallets (PC, smartphone)

2.3. Cold wallets

Ledger Nano S.

Ledger Blue.

Trezor.

Keepkey