Hot Site

Definition(s):

A fully operational offsite data processing facility equipped with hardware and software, to be used in the event of an information system disruption.

Source: NIST CNSSI 4009-2015 from NIST SP 800-34 Rev. 1
NIST SP 800-34 Rev. 1 under Hot Site

An alternate facility that already has in place the computer, telecommunications, and environmental infrastructure required to recover critical business functions or information systems.

Source: BCI/DRJ

A Hot Site is a type of data recovery site that is set up with all of the necessary hardware and software to allow a business to resume operations quickly in the event of a disaster. It is typically located in a secure, remote location and is used to replicate data in real-time.