A lifecycle policy is a set of rules that controls how data changes over time: when it is kept in place, moved to cheaper or colder storage, versioned, archived, or deleted. In cloud and object storage systems, these rules are often based on age, access frequency, file type, or metadata tags. They help teams manage large data sets without manual cleanup.
In cyber security, lifecycle policies reduce attack surface and limit how long sensitive material remains exposed. Keeping temporary artifacts, logs, or old copies longer than needed creates opportunities for data theft, compliance failures, and abuse by insiders or attackers who gain access to storage. Defenders use lifecycle policies to automatically expire intermediates, quarantine suspect files, and enforce retention for evidence or regulated records. In modern AI and media pipelines, they are essential because every generation step can create new files that must be handled differently.