Why does the Bitcoin address change every time I receive a new Bitcoin transaction?

Eidoo wallet is built on an HD (Hierarchical Deterministic) framework, a privacy-centered method for address generation and management. Once a BTC address receives an incoming payment, a new address will automatically be generated and display.

While previously used Bitcoin addresses remain valid and can always be used to receive funds multiple times, if you use the same address each time you receive funds, it becomes easy for anyone to track your entire payment history. This method of address generation improves privacy by automatically presenting you with a new address when you’re expecting a new payment.