A communication method and system according to the present invention generates a unique cryptographically secure URI in response to receiving a user post. The user post and URI are stored temporarily. The URI is sent to an intended recipient. In response to a first instance of accessing the URI, the content is retrieved and sent to the intended recipient. The original uploaded content and URI are then deleted. In response to subsequent instances of accessing the URI, random content determined in part by a current environmental state of the communication, is returned. Recent subsequent instances can return thematically similar content.