IntermediateCrypto1 min
A cold wallet is a way of keeping cryptocurrency keys offline, without a permanent internet connection: a hardware device or a seed phrase written on paper or metal.
In plain words
Because the key never touches the internet, a remote hack is almost impossible. The risks are different: physical loss or theft of the device and the seed phrase, and mistakes during recovery. Cold wallets suit long-term storage; for everyday payments a “hot” mobile wallet is more convenient. Buy a hardware wallet only from the maker or an official reseller and check that the packaging has not been opened.
Example. You buy a hardware wallet, write the seed phrase on paper and keep it in a safe, while the money for everyday spending stays in a mobile wallet.