Nothing — they're the same obligation under different names. A legal hold (also called a litigation hold, preservation order, or eDiscovery hold) is the process of preserving electronically stored information (ESI) and documents when litigation is reasonably anticipated. The duty to preserve attaches before a lawsuit is filed, and failure to act can bring spoliation sanctions under FRCP 37(e). Whatever your team calls it, the workflow is identical: identify custodians, issue notices, track acknowledgments, preserve data, and document everything. For the full process, read the
complete legal hold best-practices guide.