Your private key signs each of your transactions. Since Lumi is a client-side wallet, transactions are conducted completely inside your digital wallet and are signed by your own private key. Each private key identifies that the transaction was carried out by you. Also, no third party has access to your private key and for these reasons, all transactions from your wallet will be identified as yours.

Right now, we do not show private keys in the application. But you can always use your mnemonic phrase to recover your wallet.