The second notable feature of cryptocurrency is its anonymity. It means no one can find out how much assets you have or who you are transacting with. There are different levels of anonymity. Bitcoin’s anonymity is at the most basic level.
You can only find out the transaction records on the blockchain but can’t find out who’s behind the address. However, once you know who is using the address, you can find out all his transaction records and assets.
Dash and Monero provides higher levels of anonymity. Even if you have found out who it is behind the address, you still have no access to the transaction records. Zcash takes anonymity to the next level: Only the one with the private key can review the transaction records.