Ledger is a hardware cryptocurrency wallet which stores the user’s private keys, critical piece of information used to authorize outgoing transactions on the blockchain network, in a secure hardware device. The main principle behind hardware wallets is to provide full isolation between the private keys and your easy-to-hack computer or smartphone.
Ledger is developing hardware wallet technology that provides the highest level of security for crypto assets. Their products combine a Secure Element and a proprietary OS designed specifically to protect your assets. Ledger hardware wallets empower you with the ownership and control of your private keys.
Learn more: https://www.ledger.com