Even though Bitcoin has implemented cryptography and does not use the owner's name, Bitcoin transactions are easy to track in the ledger. So several privacy coins were created that can hide transactions on the blockchain such as the number of coins transacted, sender and recipient addresses, etc. So only both parties, the sender and recipient, can know about the transaction. Some examples of well-known privacy coins are: Dash, Monero, PIVX, Verge, ZCash.
