Who owns Decentraland?

Who exactly owns Decentraland? Could you elaborate on the ownership structure of this decentralized virtual world? Is it owned by a single entity or is it collectively owned by its users? What are the implications of such ownership structure on the governance and development of Decentraland? Is there a possibility of change in ownership in the future, and if so, how would such a transition be handled? Could you also discuss the security measures taken to protect the ownership rights within this decentralized platform?