HR restriction on personnel number

Hi security experts,

It is possible to set the restriction in HR on personnel number (not only on your own persnr)?

Also when the persnr is on the default position 99999999?

The requirement is here very simple. Within the same Pers.Area, Employee group and subgroup and even in the same OrgUnit we would like to restrict on certain persnr.

Through creating a new PD-Profile we are able to restrict on persnr. However once the persnr is assigned to the default position 99999999 the security becomes obsolete and all information are visible like IT0008 Basic Salary.

I just cannot believe that SAP is not able to restrict on personnel number and that is why I have created my question in this community.

I hope to get here some clarity and some good advises.

Thank you for your answers in advance!

Marc