In cybersecurity, 'down' refers to a system, network, or application being unavailable or non-operational. This can result from planned maintenance, unexpected technical failures, cyberattacks (such as Distributed Denial of Service attacks), or power outages. When systems are down, organizations may be unable to access critical data or perform essential functions, leading to operational disruptions and potential security risks. In healthcare, for example, 'down' situations may trigger the use of time procedures - manual processes hospitals rely on when electronic systems are inaccessible. Effective incident response plans are essential to minimize downtime and ensure business continuity.