Air Gap

An air gap is a security measure that involves completely isolating a device from any network connections, particularly the internet, to protect it from cyber threats such as malware, hacking, and data breaches. An air-gapped system is often used in Bitcoin cold wallets, where private keys are stored on a device that has never been connected to the internet. This isolation enhances the security of the wallet by minimizing exposure to online threats. Data transfer to and from an air-gapped cold wallet is conducted manually using physical media, such as USB drives or external hard disks. Learn more about how to protect your bitcoin from malware and phishing