A system for executing code with blind hypervision mechanism comprises: at least one addressable physical memory, a processor operating in at least two modes, a mode termed initialization making it possible to define at least one partition in the memory and at least one second mode termed nominal, a memory bus linking the processor to the memory, a memory partitioning unit positioned on the memory bus, the unit being adapted for restricting memory access to the partition currently executing when the processor is in a mode other than the initialization mode.