1. A method for controlling the execution of at least one program in an electronic circuit, the method comprising: filling at least one area of volatile memory of the electronic circuit with first instructions that, when executed, would result in an exception processing; prior to executing a jump instruction of the at least one program to jump execution to the at least one area and while executing the at least one program, replacing all or part of the first instructions in the at least one area with second valid instructions, the replacing comprising overwriting a first instruction with a second instruction; and following the replacing, executing the jump instruction to jump execution to the at least one area and executing instructions stored in the at least one area.