The principle of the software seems to be that the original data is never altered. It is a postgres extension that "masks" the data for certain postgres users. You can always connect as the root user and see everything when you need to.
> These methods will destroy the original data. Use with care.
* Static Masking will destroy the authentic data once for all
* Dynamic Masking will only alter the data the "masked users". Regular users will continue to view the real data.
Both techniques have their own advantage depending on your context.