Blockchain & Privacy
Blockchains store records of transactions, accounts and metadata. In a permissionless setting, this data is available to the public and especially to all active participants to enable trust in the network. There are also alternatives that make blockchain transactions and transaction history more private while minimizing the required trust through a number of different techniques on all blockchain layers. Builders and users must understand the properties of blockchain networks in order to seclude information and not be exposed to oversharing of data and unwanted security risks.