Basically, it splits your seed into n parts that need to be XORed together to get the original seed.
The problem is that the “dummy” parts created are all from the insecure PRNG. (Unless you manually created the individual parts and XORed them)
This means that the last part, which is the XOR of the dummy parts and your seed, can be used to fully recover the original seed by itself. (As the possibility of XORed seeds is limited, and they are sequential)
The problem is finding which part it is. You must destroy all of them.
