Recovery communication during an outage is the work of keeping customers, staff, and providers acting on the same understanding while a service is down and while it returns. It is not an announcement at the start and another at the end. It is a steady flow of plain information: what is affected, what is not, what customers can and cannot do, what the firm is doing next, and when the next update will come. Good communication does not make an outage shorter, but it reduces the second harm that outages cause, which is confusion, repeated attempts, and decisions made on wrong assumptions.
The discipline of recovery communication is to say what is known, to mark what is not yet known, and to avoid filling gaps with speculation. A firm that says a service will return at a time it cannot support, or that describes a cause it has not established, creates a second problem when the time passes or the cause proves different. A firm that says, plainly, that investigation continues and that the next update will come at a stated point, gives customers something reliable to plan around, even when the news itself is unwelcome.