Abstract. This article analyzes the laws on secured transactions and trusts passed in France in the last year. The author believes that the French reform is paramount for comparative law since it clearly shows the final stage of a critical process – worldwide – in terms of proprietary security interest, in which true conceptions of proprietary interest oppose: on the one hand, the traditional conception of the Code Napoleon, characteristic of Spain, Italy and Latin America, whose code processes were inspired to a lesser or greater extent in the French civil code, currently in retreat; and on the other hand, a vision inspired on German law and common law, which seems to be gaining ground. Comprehensive knowledge of this process is vital to improve the understanding of innovations introduced in different Latin American legal systems with reference to the complex concepts of secured transactions, both traditional ones, such as suretyships, pledges, liens, mortgages and antichresis as well as the endless list of new forms imposed by financial and commercial modern practices such as leasing, factoring, securitization, mutual investment funds, trusts, etc.