Transaction validation and memory configuration modification

An operating method of a non-volatile memory, comprising:

• after comparison of attributes of a transaction with access attributes of a sector of the memory:
• validating the transaction;
• and
• requesting a modification of a value of configuration of the sector of the memory;
• wherein:
• the attributes of the transaction comprise an access restriction level, an addressing mode restriction level, and a program access prohibition level selected from a first set of levels including a first, a second, and a third program access prohibition levels;
• and
• the attributes of the sector comprise the access restriction level, the addressing mode restriction level, and a program access prohibition level selected from a second set of levels including a fourth, a fifth, and a sixth program access prohibition levels.