vetKeys

With the arrival of the Niobium milestone, the Internet Computer Protocol (ICP) has made significant strides in its mission to elevate blockchain privacy to new heights. This milestone witnesses the implementation of vetKeys features, which are now live and available to all ICP-based developers. This upgrade opens the door to decentralized key management and on-chain data privacy, marking the beginning of the Internet Computer privacy era.
Blockchain is inherently transparent, which is ideal for integrity and availability. However, this poses a limitation for many real-world applications that rely on privacy (such as messaging, identity verification, healthcare, finance, governance, and gaming).

The goal of a truly private and decentralized network is moving forward, with the release of vetKeys functionality on the Internet Computer Protocol (ICP) and the arrival of the Niobium milestone. Developers now have tools to create a new wave of trusted on-chain services, opening up vast new realms for dapps.
The openness of blockchains is certainly an advantage, but it conflicts with privacy needs in many use cases. Privacy has long been a consideration for blockchain technology.
As noted by DFINITY Foundation developer evangelist Kristofer Lund, this has become a barrier for many people: 'When you discuss building applications on the blockchain with users in the real world,' he said, 'the conversation almost stops once they learn their data will be public.'