Cold storage means holding cryptocurrency offline. Cold crypto wallets aren’t connected to the internet and therefore are protected from hacking, phishing, and other threats that could lead to a loss of digital assets. To protect your funds, CEX.IO keeps most of its coins offline. This doesn’t influence the speed of your crypto deposits and withdrawals.
You can store your funds in a cold wallet using:
a USB flash drive
a QR code
a manual transcription (typing a wallet address or writing it down on paper)