Availability ensures the timely and reliable access to and use of information and systems. This would include
safeguards to make sure data are not accidentally or maliciously deleted. This is particularly important with a
mission-critical system, because any interruptions in its availability can result in a loss of productivity and revenue.
Similarly, the loss of data can impact management’s ability to make effective decisions and responses. Availability
can be protected by the use of redundancy, backups and access control.