The invention relates to a method for accessing via a first device a predetermined piece of information duplicated in several server devices, each server device implementing a sub-assembly of safety mechanisms from a predetermined set of safety mechanisms in order to provide a predetermined safety level for accessing the predetermined piece of information, wherein said method comprises the following steps: a) transmission (40) by the first device of at least one access request adapted for receiving the list of safety mechanisms implemented by the server devices; b) transmission (46) by the first device to at least one of said server devices of an access request to the predetermined piece of information, said request using the safety mechanisms implemented by the and at least one of said server devices.