“Airgap” refers to a computer (or network) that is physically disconnected from a larger network and the Internet.
This word originated in the pre-wifi days, when there was literally air between machines; that is, no connecting communication cables. Nowadays, it also refers to a lack of radio (wifi or otherwise) communication. That is, it is complete physical isolation.
Airgapped systems are often desirable in situations where Computer Security is important. For instance:
- Handling sensitive or classified information
- Backups and archiving
Tools for Communicating Offline and in Difficult Circumstances can facilitate airgapping. NNCP in particular can be useful.
Links to this note
Keeping your data safe in the event of a disaster or compromise is important. That’s why we back up.
I sometimes see people read about NNCP and wonder “This sounds great! But… what can I do with it?” This page aims to answer those questions.
Keeping your (digital) bits secure.