| 摘要 |
Provided is a content management system that is composed of a content management server (10) and a client terminal (20) that is connected to the content management server (10) via a communication network (5), wherein the content management server (10) transmits a management server ID identifying the content management server (10) and a content deletion request to the client terminal (20), and the client terminal (20) receives the management server ID and content deletion request from the content management server (10), determines whether or not the received management server ID and a management server ID stored on the client terminal (20) side match, and, when the two match, deletes the content corresponding to the deletion request stored on the client terminal (20) side in a removable media (40), etc. The present invention makes it impossible, at an appropriate timing, to play back content, such as a document, that is stored in various forms on a client terminal side, and makes it possible to reduce the risk of information leakage and ensure security as well as ensure the preservation of content. |
