When bitcoin (or altcoin) is stored in an exchange, the exchange has custody of your bitcoin and there's always a risk of losing all of your bitcoin (or altcoin).
When your bitcoins (or other altcoin) is stored in your personal wallet, you have the custody of your bitcoin (or other altcoin). One way to keep custody of your bitcoin (or other altcoin), is storing them in your personal hardware wallet.
I think, a hardware wallet is a safe way to keep custody of your bitcoins (or other altcoin). In this video, I discuss the advantages and disadvantages of Ledger hardware wallet.
Ledger's website: www.ledger.com
Disclaimer: This channel is not to provide financial advice. The videos on this channel should not be considered as financial advice.
