Having complete control of your crypto-assets is an essential part of being a cryptocurrency owner. If your Bitcoin or any other coin is stored on an exchange, you are at the mercy of that exchange. This is where a hardware-wallet, also known as a cold wallet comes in. With one of these, your cryptocurrency is stored offline free from any attacks, while still giving you complete control over your assets. The most popular hardware wallet in the industry is a Ledger Wallet, check it out below

Ledger Nano S - The secure hardware wallet