If you want to sleep well knowing that your cryptocurrency is safe, you have to find the safest wallet to use. As many of us know, they are used to store your public keys, or your password / alphanumeric number which is used to spend / send your coins to another currency address.
They allow to access, store, send, receive and track currencies in digital currency, whether it is Bitcoin (BTC), Ethereum (ETH) or token related to ICO.
Think of them as your personal security boxes.
There are many types of portfolios, including:  Hot Wallet
A hot wallet, for example, is one that installs on your computer or mobile device. You have control of the security of your coins using a warm wallet. Note that since they are on a device connected to the Internet, they may be less secure.
Types of hot wallets include desktop wallets such as those found on Exodus.io and Jaxx.io. A desktop wallet is accessible from and lives on your personal computer. Wallets can be stored as wallets on the phone. Online wallets like Coinpayments.com and Jaxx.io are reliable. In this case, a third party stores your coins in the cloud and can be protected with multi-signature portfolios.
When you choose a wallet, make sure that it allows you to check your private keys. It should also have backup and security features like PINs. You also want to make sure that the portfolio you choose is compatible with different operating systems.
A cold wallet can help you maintain higher levels of security to protect your coins by storing them offline. Offline storage keeps your coins and data out of reach of potential hackers. This is probably one of the safest ways to protect resources with a cold storage device.
Some hardware portfolios to consider include Ledger Nano S, Trezor and KeepKey.
A word of caution, though. None of us can afford to lose the keys to the safe, because we may lose ownership of our valuables if they end up in the wrong hands.
So do not share any of your public keys or other cryptographic passwords with anyone.