Dynamic permissions are access rights that can be granted for a specific task and changed as circumstances or risk change. Unlike standing permissions, which remain available over time, they can be narrowed or revoked when no longer needed.
In cybersecurity, this approach supports least privilege and limits the damage if an account or AI agent behaves unexpectedly. For example, an agent might receive access to a particular file or business tool for one task, with access reduced if a risk assessment signals concern. Effective controls enforce changes when resources are accessed and record what was allowed, changed, and why.